The rules of survival never change, whether you’re in a desert or in an arena.
The past is always with us, for it feeds the present.
The value of a mental process lies not in its composition, but in its consequences for survival and flourishing.
我不需要理由去毫无歉意地做自己。
种一棵树最好的时间是20年前,其次是现在。
研究的真正乐趣来自于突破我们认为可能的界限。
The most important decision you make is to be in a good mood.