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

— Heisenberg, German Theoretical Physicist

To him who looks upon the world rationally, the world in its turn presents a rational aspect. The relation is mutual.

— Georg W.H. Hegel, German philosopher

In a rational society we would want our presidents to be teachers. – In our actual society we insist they be cheerleaders.

— Steve Allen, Actor

The test of a first rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function.

— F. Scott Fitzgerald, American Writer

Never memorize something that you can look up.

— Albert Einstein, Theoretical Physicist

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

During times of universal deceit, telling the truth becomes a revolutionary act.

— George Orwell, English Novelist

The intuitive mind is a sacred gift And the rational mind is a faithful servant.

— Albert Einstein, Theoretical Physicist

To such a world of conflict, a world of victims, and executions, it is the job of thinking people not to be on the side of the executioners.

— Albert Camus, French Philosopher

The deepest sin against the human mind is to believe things without evidence.

— Thomas Hexley, English Biologist
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