But it did not all happen in a day, this giving over of himself, body and soul, to the man-animals. He could not immediately forego his wild heritage and his memories of the Wild. There were days when he crept to the edge of the forest and stood and listened to something calling him far and away.
Jack LondonThe great task demanded of man is reproduction. He is urged by passion to perform this task. Passion, working through the imagination, produces love. Passion is the impelling factor, imagination the disturbing factor; and the disturbance of passion by imagination produces love.
Jack LondonDenied the outlet, through play, of his energies, he recoiled upon himself and developed his mental processes. He became cunning; he had idle time in which to devote himself to thoughts of trickery.
Jack London