If the activity of a science can be supplied by a machine, that science cannot amount to much, so it is said; and hence it deserves a subordinate place. The answer to such arguments, however, is that the mathematician, even when he is himself operating with numbers and formulas, is by no means an inferior counterpart of the errorless machine...
Translated by E.R. Hedrick and C.A. Noble - Elementary Mathematics from an Advanced Standpoint, Part First, Chapter II (p. 22)