浅不足与测深，愚不足与谋智，坎井之蛙，不可与语东海之乐。
浅陋的人，不能和他谈论深奥的见解；愚蠢的人，不能和他谋划有智慧的事。井底之蛙，不能和它谈论东海的快乐。
Loneliness is not a lack of company, but a lack of purpose.
The greatest threat to our planet is the belief that someone else will save it.
I think that one should recognize the reality even when one doesn't like it; indeed, especially when one doesn't like it.
抽象的目的不是模糊，而是创建一个新的语义层次，在这个层次上可以绝对精确。