宇宙的扭曲面——黑洞、虫洞、奇点和时间扭曲——才是真正的精彩所在。

If you keep learning all the time you have a huge advantage.

"A book is a dream that you hold in your hand."

The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.

人民是根，人民是基础，人民是力量的源泉。

You can't manage what you don't measure - that's why transparency is the foundation of sustainable manufacturing.

The essence of a free government consists in an effectual control of rivalries.