If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

I never want to stop learning and growing as an artist.

In mathematics, the art of proposing a question must be held of higher value than solving it.

I am not interested in solving problems that are already solved.

释义：不热衷打听他人的是非，不刻意关注别人的缺点，不传播他人的过错。

培养造就冲淡清虚的品格，便是一生的学问；丢弃无端的烦脑，心境又是多么安静平和。