The teacher who is indeed wise does not bid you to enter the house of his wisdom but rather leads you to the threshold of your own mind.
The more you know, the more you can know.
数学的本质在于它的自由。
The true artist is not proud; he knows that art is greater than himself.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.