Psychology must be purely experimental and analytical.
心理学必须是纯粹实验性和分析性的。
Over the piano was printed a notice: Please do not shoot the pianist. He is doing his best.
The only thing more dangerous than a man with nothing to lose is a man with everything to gain.
历史不仅仅是过去的故事,它也是现在的镜子和未来的窗口。
直到被完全理解,过去才真正成为过去。