"To be humane, we must ever be ready to pronounce that wise, ingenious and modest statement 'I do not know'."

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Source: Letter to the Grand Duchess Christina. Essay by Galileo Galilei, 1615.

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Galileo Galilei

Astronomer, Physicist

Galileo Galilei was an Italian astronomer and physicist known for his pioneering work in heliocentrism and the scientific method.

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