数学不是一项观赏性运动。你必须参与其中。
Mathematics is not a spectator sport. You have to get involved.
Confidence is the most beautiful thing you can possess.
"The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'"
In three words I can sum up everything I've learned about life: it goes on.