Hard work and perseverance are the keys to overcoming any challenge.

Liberal democracy may constitute the "end point of mankind's ideological evolution" and the "final form of human government," and as such constituted the "end of history."

化学是一门一直贴近我内心的科学，我以喜悦和热情将一生奉献给了它。

Find your enemy, you will be safely!

Creativity is about freedom, not limitations.

科学是理解世界，而工程是改变世界。

The more we have, the less we are.

世界上充满了故事，但所有的故事都是一体的。