Roger Bacon
Quotations

Argument is conclusive . . . but . . . it does not remove doubt, so that the mind may rest in the sure knowledge of the truth, unless it finds it by the method of experiment. . . . For if any man who never saw fire proved by satisfactory arguments that fire burns . . . his hearer’s mind would never be satisfied, nor would he avoid the fire until he put his hand in it . . . that he might learn by experiment what argument taught.

All science requires mathematics. The knowledge of mathematical things is almost innate in us. . . . This is the easiest of sciences, a fact which is obvious in that no one’s brain rejects it; for laymen and people who are utterly illiterate know how to count and reckon.

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