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Every individual is a moral legislator.

The only person who is educated is the one who has learned how to learn and change.

數學是解開宇宙秘密和理解支配它的基本法則的關鍵。

Existence is a risk, but non-existence is also a risk.

十分的聰明只用七分就可以了，剩下三分留給子孫；如果要將十分聰明全都使出來，反而會適得其反，近的害了自己，遠的害了兒孫。

領導就是服務，而不是被服務。