老时相信一切，中年怀疑一切，青年知道一切。

Quality should never be compromised for the sake of speed.

I always try to be grateful for every opportunity.

In the realm of mathematics, every problem is an opportunity to discover something new and profound.

做出伟大工作的唯一方法是热爱你所做的事情。

Sometimes in life, you don't always feel strong, but that doesn't mean you're not.