真正的对立是在自我束缚的人（其存在由拥有的原则构成）和自由的人（其存在由存在的原则构成）之间。
The real opposition is that between the ego-bound man, whose existence is structured by the principle of having, and the free man, whose existence is structured by the principle of being.
悲伤就像海洋；它如潮水般起伏。有时水面平静，有时却势不可挡。我们所能做的就是学会游泳。
You can't control everything in life, but you can control how you react to it.
数学和计算机科学的交叉点是一些最激动人心的发现产生的地方。