If you would be a real seeker after truth, you must at least once in your life doubt, as far as possible, all things.
Discours de la Methode. 1637.
Loci: Convergence
Mathematical Quotations
Our library of quotations is organized alphabetically by surname of the author.
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Ibn Khaldun (1332-1406)
Geometry enlightens the intellect and sets one's mind right. All of its proofs are very clear and orderly. It is hardly possible for errors to enter into geometrical reasoning, because it is well arranged and orderly. Thus, the mind that constantly applies itself to geometry is not likely to fall into error. In this convenient way, the person who knows geometry acquires intelligence.
Isidore of Seville (ca 600)
Take from all things their number and all shall perish.
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