The P versus NP problem is one of the most important unsolved problems in computer science.

"We are all a little broken, but that's how the light gets in."

整个世界变得越来越同质化，我认为保护文化身份很重要。

The artist is the brother of the criminal and the madman.

美国梦是由美国能源驱动的。

与那些挑战你的人为伍，而不仅仅是那些赞同你的人。