We are all migrants through time.
我们都是时间的移民。
"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."
与逆境不屈抗争，以无畏的气势面对敌人。
The language of causality is the language of science.
数学的本质不是使简单的事情复杂化，而是使复杂的事情简单化。