变革在开始时最难，在中间最混乱，在结束时最好。
Change is hardest at the beginning, messiest in the middle, and best at the end.
棋盘是世界；棋子是宇宙万象；棋局规则便是我们所谓的自然法则。
The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
在原子世界中，数学语言是唯一可以使用的语言。