The proper study of psychology is not what the mind is, but what the mind does.
心理学研究的重点不是心灵是什么，而是心灵做什么。
食欲，对食物的渴望，是胃腺持续而强大的刺激物。
The human heart is the most deceitful of all things, and desperately wicked. Who really knows how bad it is?
You don't learn to walk by following rules. You learn by doing, and by falling over.
The essential function of art is moral. But a passionate, implicit morality, not didactic. A morality which changes the blood, rather than the mind.