没有对人类的热爱，英雄是什么？

The concept of reducibility is central to understanding the relationships between different computational problems.

"The act of writing is an act of courage, a defiance against the silence of the universe."

So foul and fair a day I have not seen.

In mathematics, the journey is just as important as the destination.

Small changes in farming practices can lead to big impacts on global food security.

真正的数学家始终是学生，永远在学习。