Nothing takes place in the world whose meaning is not that of some maximum or minimum.

Leonhard Euler

Mots clés mathematics calculus

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Logic is the foundation of the certainty of all the knowledge we acquire.

Leonhard Euler

Mots clés logic-made-easy

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Madam, I have just come from a country where people are hanged if they talk.

Leonhard Euler

Mots clés humorous

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