每个人都有属于自己的秘密。

大国政治的悲剧在于它导致冲突和战争。

The method of psychology must be objective, even when studying subjective phenomena.

"Books are the way that we communicate with the dead. The way that we learn lessons from those who are no longer with us, that humanity has built on itself, progressed, made knowledge incremental rather than something that has to be relearned, over and over."