We must be free not because we claim freedom, but because we practice it.
He who has no homeland is like a nightingale without a green forest.
唱歌不是为了拿奖,是为了感动人。
知识是人类的最高财富,而分享知识则是最高的慷慨。
"The writer's task is to listen to the whispers of the world and give them a voice."
Persistence is key in mathematical research; many great results come from long struggles.