赏者不昵德，诛者不挟怨。
分发奖赏的人不要怀有私恩，行使惩罚权力的人也不要带有私怨。
唯一能拯救我们的是停止害怕。
我们都是破碎的，但正是裂缝中透进了光。
Mathematics is a collaborative endeavor. No one does it alone.
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
The gift of language is the single human trait that marks us all genetically, setting us apart from the rest of life.