Use music to express the truest self.

A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.

Tyranny will fall, freedom will endure.

I can resist everything except temptation.

自信是最好的装扮，展现它并拥有它。

Mathematics is the language in which the gods talk to people.

每一滴石油都应该被高效和负责任地使用。