Jack London,
Martin Eden — Chapter 27
(1909)
“ You spoke yourself of the human frailty that prevented one from taking all the factors into consideration. And you, in turn,—or so it seems to me,—leave out the biological factor, the very stuff out of which has been spun the fabric of all the arts, the warp and the woof of all human actions and achievements." To Ruth's amazement, Martin was not immediately crushed, and that the professor replied in the way he did struck her as forbearance for Martin's youth. Professor Caldwell sat for a full minute, silent and fingering his watch chain. ”
