仅仅观察、实验、理论化和计算是不够的。人们还必须想象。

In the end, we only regret the chances we didn't take.

Love is the most important thing in the world.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

"A book is a version of the world. If you do not like it, ignore it; or offer your own version in return."

你给予的越多，你得到的就越多。

I'm not afraid to fall in love, I'm afraid to fall for the wrong person again.