"But perhaps my art is the art of a lunatic, I thought, mere glittering quicksilver, a blue soul breaking in upon my pictures."

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It is our responsibility as scientists, knowing the great progress which comes from a satisfactory philosophy of ignorance, the great progress which is the fruit of freedom of thought, to proclaim the value of this freedom; to teach how doubt is not to be feared but welcomed and discussed; and to demand this freedom as our duty to all coming generations.

— Richard P. Feynman