venerdì 10 ottobre 2008

Botticelli vs Duchamp

Sandro Botticelli Primavera (1477-1490), Firenze - Uffizi


Marcel Duchamp Fountaine (1917)
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Minimal Further Readings - For Essays or Personal Interest

Tutorial #3. What is Beauty? What is Art? Disucssion Questions

Think about these questions in light of the lectures and the readings materials provided (Voltaire, and Neuroestethics). Try to give critical answers.


  • Is beauty in the eye of the beholder?

  • When we say something is beautiful, are we recommending to others that they should take delight in it?

  • Beauty may be intersubjective, but is it objective? Are there objective standards of beauty?

  • Can we argue rationally about whether something is beautiful?

  • What does it mean to say that art expresses emotion?

  • Do beauty and happiness go together?

  • What is the role of the experience of beauty in a good life?

  • Is taste a function of education and economics? Or perhaps, is it more a "hard-wired" neurobiological function?

  • Is natural beauty ever better than constructed beauty, like in art or music?

  • Must art be beautiful to be great art?

  • Does placing a work (any work) in a museum makes that work a work-of-art? Contrast Duchamp’s Fountain and Botticelli’s Primavera. They are both in museums. Are they both works of art? Why? Or why not?

Tutorial # 3. What is Beauty? What is Art? Neuroestethics

The Neural correlates of beauty S Zeki and H Kawabata Journal of Neurophysiology (J Neurophysiol 91: 1699-1705, 2004)

We will concern ourselves with the Introduction and the Discussion sections (that is, we can skip the methodological\experimental stuff) -
Try to focus on the philosophical consequences about the nature of beauty that this kind of experiments might have.

ps The pdf article is linked - click on the title.

Tutorial # 3. What is Beauty? What is Art? Voltaire On Beauty

From Project Gutenberg's:
http://www.gutenberg.org/files/18569/18569-h/18569-h.htm

Voltaire (1764)
Dictionnaire philosophique (Philosophical Dictionary)

"Beauty"

Ask a toad what beauty is, the to kalon? He will answer you that it is his toad wife with two great round eyes issuing from her little head, a wide, flat mouth, a yellow belly, a brown back. Interrogate a Guinea negro, for him beauty is a black oily skin, deep-set eyes, a flat nose. Interrogate the devil; he will tell you that beauty is a pair of horns, four claws and a tail. Consult, lastly, the philosophers, they will answer you with gibberish: they have to have something conforming to the arch-type of beauty in essence, to the to kalon.
One day I was at a tragedy near by a philosopher. "How beautiful that is!" he said. "What do you find beautiful there?" I asked. "It is beautiful," he answered, "because the author has reached his goal." The following day he took some medicine which did him good. "The medicine has reached its goal," I said to him. "What a beautiful medicine!" He grasped that one cannot say a medicine is beautiful, and that to give the name of "beauty" to something, the thing must cause you to admire it and give you pleasure. He agreed that the tragedy had inspired these sentiments in him, and that there was the to kalon, beauty.
We journeyed to England: the same piece, perfectly translated, was played there; it made everybody in the audience yawn. "Ho, ho!" he said, "the to kalon is not the same for the English and the French." After much reflection he came to the conclusion that beauty is often very relative, just as what is decent in Japan is indecent in Rome,
[Pg 54] and what is fashionable in Paris, is not fashionable in Pekin; and he saved himself the trouble of composing a long treatise on beauty.
There are actions which the whole world finds beautiful. Two of Cæsar's officers, mortal enemies, send each other a challenge, not as to who shall shed the other's blood with tierce and quarte behind a thicket as with us, but as to who shall best defend the Roman camp, which the Barbarians are about to attack. One of them, having repulsed the enemy, is near succumbing; the other rushes to his aid, saves his life, and completes the victory.
A friend sacrifices his life for his friend; a son for his father.... The Algonquin, the Frenchman, the Chinaman, will all say that that is very beautiful, that these actions give them pleasure, that they admire them.
They will say as much of the great moral maxims, of Zarathustra's—"In doubt if an action be just, abstain..."; of Confucius'—"Forget injuries, never forget kindnesses."
The negro with the round eyes and flat nose, who will not give the name of "beauties" to the ladies of our courts, will without hesitation give it to these actions and these maxims. The wicked man even will recognize the beauty of these virtues which he dare not imitate. The beauty which strikes the senses merely, the imagination, and that which is called "intelligence," is often uncertain therefore. The beauty which speaks to the heart is not that. You will find a host of people who will tell you that they have found nothing beautiful in three-quarters of the Iliad; but nobody will deny that Codrus' devotion to his people was very beautiful, supposing it to be true.
There are many other reasons which determine me not to write a treatise on beauty.

giovedì 2 ottobre 2008

Tutorial # 2. Informal Reasoning. An Exercise

#Try to give a critical evaluation of the following article in light of Thomson (2002)'s Ch.5.
Take notes of the main points, and come to the tutorial with a one-page brief argument of your own either in favour of or against legalising soft drugs- give reasons, give evidence and examples.

Exercise 3 from Thomson (2002) Ch. 5.

Slippery slope of legalising drugs

By
Professor P. A. J. Waddington

The newly elected leader of the Liberal Democrats has stirred up a storm by suggesting the legalisation of soft drugs should be reviewed by a Royal Commission.
There is a strong argument for legalisation. It is demonstrable that outlawing these drugs has failed to stem, still less eliminate, their sale. All the indications are that the consumption of illicit drugs is now common-place – especially among the young. So, if we can’t beat it, perhaps we should try regulating it. This, after all was surely the lesson to be learned from the American experiment with Prohibition. Outlawing commodities that people want to buy simply encourages criminals to supply them, leading to gangsterism. It also leads otherwise law-abiding people into the clutches of those with a vested interest in ensuring that they become addicted to harder drugs.
Regulation not only eliminates criminal involvement, it can ensure product standards. When people buy illicit drugs they have no idea how strong the dose
will turn out to be, with the obvious risk of overdosing. And let me remind those who say ‘serves them right’, that the victim might easily be a member of their family. Distribution through legitimate retail outlets means the consumption of these drugs would also be controlled through the informal rules that surround any social activity. Pubs dispense a potentially lethal drug in ways that encourage moderate usage. It is hugely watered down, mixed with non-alcoholic beverages, and regarded as an accompaniment to sociability, rather than an end in itself. These are all more effective controls than the threat of police action. As advocates for the legalisation of cannabis are fond of telling us, the harm that cannabis does is far less than that done by alcohol. They are absolutely correct: the drug problem on university campuses nationwide is that of alcohol – not cannabis or amphetamines. However, this is precisely where I find the argument for legalisation unconvincing. The regulation of alcohol is held up as a model to emulate and Prohibition as a failure to be avoided. It seems strange to claim that a policy has been a ‘success’ when it evidently produces such mayhem. The country that has pursued policies of decriminalising soft drug consumption most avidly is, of course, the Netherlands. It has the highest crime rate in the western world in the recently published International Crime Survey. When my wife and I visited Amsterdam, we took the opportunity of revisiting the youth we never had and threw ourselves on the mercy of the proprietor who sold us a couple of cannabis chocolates. Apart from sending us both soundly and gigglingly to sleep, my experience was that taking dope was very different to consuming alcohol. It was an act of deliberately consuming a drug in order to experience the effect. This is not how I experience the consumption of alcohol, where the effect is almost an incidental by-product of the taste of the wine or beer and conviviality of the circumstances.
The suggestion that the adverse consequences of soft-drug use owes most to the fact that it is outlawed, also seems contrary to experience. In the 1970s and 1980s Scotland suffered particularly from heroin addiction. The path that addicts seem to have taken was via solvent abuse. Now, at that time the supply of solvents was both legal and abundant, and their abuse was not outlawed. Yet solvent abuse seemed to be the slippery slope down which many young people tragically slid into heroin addiction. The ‘slippery slope’ argument is revealing in another sense: advocates of legalisation insist that without the involvement of criminal suppliers cannabis use need not lead to addiction to harder drugs. Implicit in this argument (which some advocates are willing to make quite explicit) is the acceptance that hard drugs should remain illegal. Of course, this raises the whole thorny issue of where the line between ‘soft’ and ‘hard’ should be drawn. It is predictable that having legalised cannabis, another campaign would commence to legalise cocaine and heroin.
I don’t know where this leaves us, but mine’s a pint.


(Police Review, 27 August 1999)

Tutorial # 2. Informal Reasoning. Exercising the skills of reasoning

From Anne Thomson (2002) Critical Reasoning, Chapter 5

Summary: Assessing an argument

Analysing

1 Identify conclusion and reasons:
• look for ‘conclusion indicators’,
• look for ‘reason indicators’ and/or
• ask ‘What is the passage trying to get me to accept or believe?’
• ask ‘What reasons/evidence is it using in order to get me to believe this?’

2 Identify unstated assumptions:
• assumptions supporting basic reasons,
• assumptions functioning as additional reasons, assumptions functioning as intermediate conclusions,
• assumptions concerning the meanings of words,
• assumptions about analogous or comparable situations,
• assumptions concerning the appropriateness of a given explanation.

Evaluating

3 Evaluate truth of reasons and assumptions:
• how would you seek further information in order to help you to do this?

4 Assess the reliability of any authorities on whom the reasoning depends.

5 Is there any additional evidence which strengthens or weakens the conclusion?
• anything which may be true?
• anything which you know to be true?

6 Assess the plausibility of any explanation you have identified.

7 Assess the appropriateness of any analogies or comparisons you have identified.

8 Can you draw any conclusions from the passåge? If so, do they suggest that the reasoning in the passage is faulty?

9 Is any of the reasoning in the passage parallel with reasoning which you know to be flawed?

10 Do any of the reasons or assumptions embody a general principle? If so, evaluate it.

11 Is the conclusion well supported by the reasoning? If not, can you state the way in which the move from the reasons to the conclusion is flawed? Use your answers to questions 5 to 10 to help you to do this.

Deduction and Induction

What is an Argument?

An argument is a set of statements. One statement is the conclusion of the argument. The others are the premises. The premises give support to the conclusion.
Deductive arguments and Inductive arguments are two types of logically correct arguments.

#What are the characteristics of a deductive argument?

A Deductive Argument is:

1. Non-Ampliative: In a valid deductive argument, all of the content of the conclusion is already present in the premises.

2. Valid arguments are necessarily truth preserving: If the premises are true, the conclusion must be true.

3. Valid Arguments are Erosion proof. If new premises are added, the argument remains valid.

4. Deductive validity is an all-or-nothing issue: A deductive argument is either valid or invalid.

#What are the characteristics of an inductive argument?

An Inductive argument is:

1. Ampliative: The conclusion has content that goes beyond the content of the premises.

2. Inductive arguments are not necessarily truth preserving: A correct inductive argument may have true premises and a false conclusion.

3. Inductive arguments are not erosion proof: new premises may undermine the argument.

4. Inductie arguments have different degrees of strength. In some inductive arguments the premises support the conclusion more or less strongly than in other inductive arguments.


An Example of Deductive argument

(1) All Italians are beautiful
Matteo is an Italian
________________________
Matteo is beautiful

This argument is a valid deduction. It is nonampliative: when we say that all Italians are beautiful, we also say that Matteo is beautiful, given that he is Italian. It is necessarily truh-preserving: If the premises express something true, the conclusion must also express something true - given that the conclusion doesn't express anything which is not already expressed in the premises. Even if new premises are added, e.g. Ruth is Italian, the argument remains valid. The premises support totally, not up to a certain degree, the conclusion.


An Example of Inductive Argument:

(2) All observed Scots like beer­
=========================
All Scots like beer


This argument is ampliative: The premise is only about the Scots that have been observed so far. The conclusion is about all Scots (also those to be observed). It is not necessarily truth preserving. Possibly, there is, was, orwill be a Scot who dislikes beer. The argument is not erosion proof: it suffices to observe Andy, who is a Scot who dislikes beer, to undermine the argument. The strength of this argument is also a question of degree. If you have observed millions of Scots in different ages of history and places your argument would be stronger than an argument whose premise rely only on the observation of few Scots gathered at the pub one Saturday night.


NOTE

Deductive validity and Inductive correctedness only concern the logical relation between premises and conclusion. They enable us to give an answer to this question:
Does the conclusion of the argument really follow (deductively), or is supported (inductively), from the premises?

A separate issue is: Are the premises of the argument true and worthy of our belief?

A Valid Deduction may have true premises and true conclusion (in this case the deduction is sound):

(3) All humans have a brain.
Ruth is human.
­­­_______________________
Ruth has a brain.

BUT A Valid deduction may also have false premises and true conclusion:

(4) All soccer players are American
Obama is a soccer player­­­
________________________
Obama is American

... and a valid deduction may also have false premises and false conclusion:

(5) All Humans play soccer for Liverpool
Mickey Mouse is human
­­­________________________________
Mickey Mouse play soccer for Liverpool

- When we say that a valid deduction is necessariy truth preserving, we mean that there cannot be a valid deduction with true premises and a false conclusion.

- Instead when we say that an inductive argument is correct we mean that if the premises are true (and relevant to the conclusion), then the conclusion is probable.