The true challenge in mathematics is not solving problems, but asking the right questions.
数学中真正的挑战不是解决问题，而是提出正确的问题。
我喜欢星星。我想这是永恒的幻觉。我的意思是，它们总是在爆发、坍塌和熄灭。但从这里，我可以假装……我可以假装事物是永恒的。我可以假装生命比瞬间更长久。神来了，神又走了。凡人闪烁、闪耀然后消逝。世界不会持久；星星和星系是短暂的、转瞬即逝的东西，像萤火虫一样闪烁，然后消失在寒冷和尘埃中。但我可以假装。
The healthy social life is found when in the mirror of each human soul the whole community finds its reflection, and when in the community the virtue of each one is living.
There are two freedoms - the false, where a man is free to do what he likes; the true, where he is free to do what he ought.
Intelligence is not to make no mistakes,But quickly to see how to make them good.