追求知识是一段没有终点的旅程,充满了奇迹和发现。
心理学必须基于可观察的事实,而非推测。
Life is a tragedy for those who feel, and a comedy for those who think.
人类最后的自由是在任何特定环境下选择自己态度的能力。
No arts; no letters; no society; and which is worst of all, continual fear and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.