The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.

文明被描述为人类与其环境相互作用的结果。

记忆是个狡猾的东西；它既可以是祝福，也可以是诅咒。