历史学家必须怀有一种信念：人类不会也不能灭亡。
The historian must have a kind of faith that humanity will not and cannot perish.
The beauty of mathematics only shows itself to more patient followers.
We must build dikes of courage to hold back the flood of fear.
给予就是接受，爱就是被爱，生活就是让生活继续。
One does not ask of one who suffers: What is your country and what is your religion? One merely says: You suffer, that is enough for me.
信任并不意味着你相信某人不会搞砸——而是意味着即使他们搞砸了，你仍然信任他们。
You can be whatever you want， so be the person who ends meetings early.