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The purpose of scientific enquiry is not to compile an inventory of factual information, nor to build up a totalitarian world picture of natural Laws in which every event that is not compulsory is forbidden. We should think of it rather as a logically articulated structure of justifiable beliefs about nature.

Peter Medawar

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Peter Medawar
Age: 72 †
Born: 1915
Born: February 28
Died: 1987
Died: October 2
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P.B. Medawar
P. B. Medawar
Sir Peter Medawar
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More quotes by Peter Medawar

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The intensity of a conviction that a hypothesis is true has no bearing on whether it is true or false. The importance of the strength of our conviction is only to provide a proportionately strong incentive to find out if the hypothesis will stand up to critical evaluation.
Peter Medawar
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I reckon that for all the use it has been to science about four-fifths of my time has been wasted, and I believe this to be the common lot of people who are not merely playing follow-my-leader in research.
Peter Medawar
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I do not propose to criticize the fatuous argument I have just outlined here, to expound is to expose.
Peter Medawar
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A danger sign that fellow-obsessionals will at once recognize is the tendency to regard the happiest moments of your life as those that occur when someone who has an appointment to see you is prevented from coming.
Peter Medawar
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It can be said with complete confidence that any scientist of any age who wants to make important discoveries must study important problems. Dull or piffling problems yield dull or piffling answers. It is not enough that a problem should be interesting.
Peter Medawar
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When asked to make the formal declaration that I did not intend to overthrow the Constitution of the United States, I was fool enough to reply that I had no such purpose, but that were I to do it by mistake I should be inexpressibly contrite.
Peter Medawar
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Scientific reasoning is a dialogue between the possible and the actual, between proposal and disposal between what might be true, and what is in fact the case.
Peter Medawar
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In no sense other than an utterly trivial one is reproduction the inverse of chemical disintegration. It is a misunderstanding of genetics to suppose that reproduction is only 'intended' to make facsimiles, for parasexual processes of genetical exchange are to be found in the simplest living things.
Peter Medawar
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The attempt to discover and promulgate the truth is nevertheless an obligation upon all scientists, one that must be persevered in no matter what the rebuffs—for otherwise what is the point in being a scientist?
Peter Medawar
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An experiment not worth doing is not worth doing well.
Peter Medawar
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Psychoanalytic theory is the most stupendous intellectual confidence trick of the twentieth century and a terminal product as well-something akin to a dinosaur or zeppelin in the history of ideas, a vast structure of radically unsound design and with no posterity.
Peter Medawar
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The fact that scientists do not consciously practice a formal methodology is very poor evidence that no such methodology exists. It could be said-has been said-that there is a distinctive methodology of science which scientists practice unwittingly, like the chap in Moliere who found that all his life, unknowingly, he had been speaking prose.
Peter Medawar
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Heredity proposes and development disposes.
Peter Medawar
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No scientist is admired for failing in the attempt to solve problems that lie beyond his competence. ... Good scientists study the most important problems they think they can solve. It is, after all, their professional business to solve problems, not merely to grapple with them.
Peter Medawar
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To abdicate from the rule of reason and substitute for it an authentication of belief by the intentness and degree of conviction with which we hold it can be perilous and destructive. Religious beliefs give a spurious spiritual dimension to tribal enmities.
Peter Medawar
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[A certain class of explanations in science are] analgesics that dull the ache of incomprehension without removing the cause.
Peter Medawar
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The bells which toll for mankind are - most of them, anyway - like the bells of Alpine cattle they are attached to our own necks, and it must be our fault if they do not make a cheerful and harmonious sound.
Peter Medawar
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I regret my disbelief in God.
Peter Medawar
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It is a truism to say that a good experiment is precisely that which spares us the exertion of thinking: the better it is, the less we have to worry about its interpretation, about what it really means.
Peter Medawar
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Scientists who think science consists of unprejudiced data-gathering without speculation are merely cows grazing on the pasture of knowledge.
Peter Medawar