唯一交到朋友的方法就是自己先成为朋友。
心理学家必须是一个严格的实证主义者。
The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.
当你做出一个新的、一致的和坚定的决定时,你的生活就会改变。