There is nothing sacred or untouchable except the freedom to think. Without criticism, that is to say, without rigor and experimentation, there is no science, without criticism there is no art or literature. I would also say that without criticism there is no healthy society.

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There are many tongues to talk, and but few heads to think.

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I don't think rock 'n roll is necessarily a young man's game. I think Neil Young is just as rock'n'roll now as he was in his 20s. I'd like to think we can still be edgy and challenging.

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I do not think you can name many great inventions that have been made by married men.

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We cannot get to where we dream of being tomorrow unless we change our thinking today.

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Nothing can be produced out of nothing.

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Some of the most beautiful people in the whole world wake up some days and they don't think that they're pretty.

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Learn to see, listen, and think for yourself. ― Malcolm X

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Five percent of the people think; ten percent of the people think they think; and the other eighty-five percent would rather die than think.

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If anyone thinks he can help you, he will inevitably mislead you, and the less phony he is; the more powerful he is, the more enlightened he is, the more misery and mischief he will create for you.

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