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If one devalues rationality, the world tends to fall apart.

— Lars Von Trier,  Danish film director

That which can be asserted without evidence, can be dismissed without evidence.

— Christopher Hitchens, Author

You cannot conquer a free man. The most you can do is kill him.

— Robert Heinlein, American Author

Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.

— Marie Curie, Physicist and Chemist

Nothing that is worth knowing can be taught.

— Oscar Wilde, Irish Poet and Playwright

Ignorance more frequently begets confidence than does knowledge: it is those who know little, and not those who know much, who so positively assert that this or that problem will never be solved by science.

— Charles Darwin, English Biologist

Education is the ability to listen to almost anything without losing your temper or your self-confidence.

— Robert Frost, American Poet

What could an entirely rational being speak of with another entirely rational being?

— Emmanuel Levinas, French philosopher

If I have seen further it is by standing on the shoulders of Giants.

— Isaac Newton, Physicist
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