Other men saw to the welfare of their dogs from a sense of duty and business expediency; he saw to the welfare of his as if they were his own children, because he could not help it.
别人照料狗,是出于责任或生意上的需要;他照料自己的狗,却像照料亲生孩子,因为他情不自禁。
— Jack London · The Call of the Wild (1903) · Chapter VI · For the Love of a Man —