A traveler who refuses to pass over a bridge until he has personally tested the soundness of every part of it is not likely to go far; something must be risked, even in mathematics.


In: Morris Kline, Mathematical Thought from Ancient to Modern Times (p. 468)


A traveler who refuses to pass over a bridge until he has personally tested the soundness of every part of it is not likely to go far; something must ...

A traveler who refuses to pass over a bridge until he has personally tested the soundness of every part of it is not likely to go far; something must ...

A traveler who refuses to pass over a bridge until he has personally tested the soundness of every part of it is not likely to go far; something must ...

A traveler who refuses to pass over a bridge until he has personally tested the soundness of every part of it is not likely to go far; something must ...