优秀的数学家不是知道所有答案的人，而是能提出正确问题的人。
A good mathematician is not one who knows all the answers, but one who asks the right questions.
The general will is always right， but the judgment which guides it is not always enlightened.
我有很多信仰，我相信神圣的时机。
我们都在阴沟里，但仍有人仰望星空。
上天不会因人们害怕寒冷而让冬天消失，大地不会因人们厌恶险峻而停止其广大。君子不会因小人喧嚣而改变自己的品行。
The true value of a forest cannot be measured in board feet alone.