Euclid taught me that without assumptions there is no proof. Therefore, in any argument, examine the assumptions.
Eric Temple Bell (1883 - 1960)
Source: H. Eves Return to Mathematical Circles., Boston: Prindle, Weber and Schmidt, 1988.
Contributed by: Zaady
The cowboys have a way of trussing up a steer or a pugnacious bronco which fixes the brute so that it can neither move nor think. This is the hog-tie, and it is what Euclid did to geometry.
Source: R Crayshaw-Williams The Search For Truth, p. 191.
It is the perennial youthfulness of mathematics itself which marks it off with a disconcerting immortality from the other sciences.
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