The greatest thing in the world is to know how to belong to oneself.
世界上最伟大的事情是知道如何属于自己。
心理学必须是纯粹实验性和分析性的。
We are just beginning to scratch the surface of understanding how our bodies perceive the environment.
最危险的浪费是我们没有意识到的浪费。
Old age is not interesting until one gets there.