没有斗争就没有权利。
Life is ours to be spent, not to be saved.
The opportunity does not go hand in hand, so when they come, you’d better hold them.
True leadership means listening—especially to those who disagree with you.
我已经履行了我的职责。我证明了庞加莱猜想，我在数学上没有什么可做的了。
阈限性是两个阶段之间的过渡状态，个体既不属于这里也不属于那里，处于两者之间。
