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.

世界上充满了显而易见的事情，却没人注意到。

领导力在于激励他人实现他们认为不可能的事情。

机会总是留给有准备的人。