If we have no heretics we must invent them, for heresy is essential to health and growth.

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You're in bad shape. It looks like you're developing a soul.

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The only means of ridding man of crime is ridding him of freedom.

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A man is like a novel: until the very last page you don't know how it will end. Otherwise it wouldn't be worth reading.

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Children are the boldest philosophers. They enter life naked, not covered by the smallest fig leaf of dogma, absolutes, creeds. This is why every question they ask is so absurdly naïve and so frighteningly complex.

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There is an excellent way to make predictions without the slightest risk of error: predict the past.

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Let the answers be wrong, let the philosophy be mistaken - errors are more valuable than truths: truth is of the machine, error is alive; truth reassures, error disturbs.

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The most agonising thing is to drop doubt into a man about his being a reality, three-dimensional - and not some other kind of reality.

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I prefer being wrong in my own way to being right in someone else's.

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All truths are erroneous. This is the very essence of the dialectical process: today's truths become errors tomorrow; there is no final number. This truth (the only one) is for the strong alone. Weak-nerved minds insist on a finite universe, a last number; they need, in Nietzsche's words, "the crutches of certainty". The weak-nerved lack the strength to include themselves in the dialectic syllogism.

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