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

— Lars Von Trier,  Danish film director

Natural science does not simply describe and explain nature: it is part of the interplay between us and nature.

— Heisenberg, German Theoretical Physicist

Go to Heaven for the climate. Hell for the company.

— Mark Twain, American Writer

Logic is like the sword–those who appeal to it shall perish by it.

— Samuel Butler, English Author

Maybe true travel is not the transportation of the body, but a change of perception, renewing the mind. 

— Ben Okri,  Nigerian Poet and Novelist

I mean, you could claim that anything’s real if the only basis for believing in it is that nobody’s proved it doesn’t exist!

— J.K.Rowling, Author

Never memorize something that you can look up.

— Albert Einstein, Theoretical Physicist

Anything that gives us new knowledge gives us an opportunity to be more rational.

— Herbert Simon,American economist

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

— Robert Heinlein, American Author

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

— Robert Frost, American Poet
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