计算复杂性的研究不仅仅是关于问题的分类；它是关于理解计算本身的本质。

Man's search for meaning is the primary motivation in his life.

Innovation is the key to staying ahead in the fruit industry.

宁静的灵魂比烦乱的灵魂更为智慧。

The books that the world calls immoral are books that show the world its own shame.

死者从未真正离去，他们只是改变了形态。

创造伟大的建筑就是为人们创造伟大的空间。