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I once spoke to a human geneticist who declared that the notion of intelligence was quite meaningless, so I tried calling him unintelligent. He was annoyed, and it did not appease him when I went on to ask how he came to attach such a clear meaning to the notion of lack of intelligence. We never spoke again.

— Peter Medawar Advice to a Young Scientist (1979)

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Intelligence

More quotes by Peter Medawar

The human mind treats a new idea the same way the body treats a strange protein; it rejects it.

No virus is known to do good: it has been well said that a virus is "a piece of bad news wrapped up in protein."

A scientist is no more a collector and classifier of facts than a historian is a man who complies and classifies a chronology of the dates of great battles and major discoveries.

If politics is the art of the possible, research is surely the art of the soluble. Both are immensely practical-minded affairs.

Karl Popper’s conception of the scientific process is that is realistic – it gives a pretty fair picture of what goes on in real life laboratories.

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Each of these private teachers who work for pay ... inculcates nothing else than these opinions of the multitude which they opine when they are assembled and calls this knowledge wisdom.

Socrates

Most intellectual people do not believe in God, but they fear him just the same.

Wilhelm Reich Philosophy : An Introduction to the Art of Wondering (2005)

Innocence in genius, and candor in power, are both noble qualities.

Anne Louise Germaine de Staël De l’Allemagne [Germany (1813)

Like every 'intellectual', a philosophy teacher is a petty bourgeois. When he opens his mouth, it is petty-bourgeois ideology that speaks: its resources and ruses are infinite.

Louis Althusser Lenin and Philosophy and Other Essays (1968)

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Quote text and notes from Wikiquote: Peter Medawar (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.