路途再近，你不走，也不会到达。事情再小，不去做也不可能完成。

The primary cause of unhappiness is never thesituation but your thoughts about it.

In the realm of mathematics, every problem is an opportunity to discover something new and profound.

对意识的研究必须摆脱一切形而上学的影响。

The only thing necessary for the triumph of evil is for good men to do nothing.

永远不要冒你无法承受的损失的风险。