No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.

Confidence comes from preparation and knowing your stuff.

Mental life is a series of experiments in adaptation.

心有其理，理性不解。

我只是尽力做到最好。

成功的关键在于理解并满足他人的需求。