I think that in mathematics, and maybe in life, you have to be willing to be a little bit lost.

那些让和平革命成为不可能的人将使得暴力革命不可避免。

翻译：真正的朋友，顺境时不添虚假繁华，逆境时不改变初心，富贵时不忘记旧交，这样的情谊才珍贵。

I know that the appearance of Los Angeles at four o 'clock in the morning every day.