最好的投资就是投资自己。
The best investment you can make is in yourself.
Every day confirms his belief of the inconsistency of all human characters, and of the little dependence that can be placed on the appearance of merit or sense.
The truth is, if you ask me what I think about anything, I’ll tell you. I’m not afraid to say what I think.
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.