数学家研究纯数学不是因为它有用;他研究它是因为他喜欢它,他喜欢它是因为它美丽。
心理学必须摆脱一切形而上学的纠缠。
让我们团结起来,为国家的独立和自由而战。
No man really knows about other human beings. The best he can do is to suppose that they are like himself.
Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence.