每件事都是一个学习的过程：每次跌倒，都是在教你下次如何站起来。
Everything is a learning process: any time you fall over, it's just teaching you to stand up the next time.
Time is not a thing, thus we can neither waste nor save it; it is always with us.
The interplay between mathematics and physics is the dance of the cosmos, choreographed by the laws of nature.
The only limits that exist are the ones you place on yourself.
知识若不付诸实践，便毫无价值。