The P versus NP problem is one of the most important problems in computer science.
A building must be a reflection of the human spirit.
I don't think about being the best, I think about progressing and enjoying what I do.
A good novel tells us the truth about its hero; but a bad novel tells us the truth about its author.
引力比其他力弱得多这一事实可能是物理学中最深刻的谜团。