The P versus NP problem is one of the most important unsolved problems in computer science.
Profitability and sustainability must go hand in hand—they are not mutually exclusive.
世界是一面镜子,它反映出我们选择看到的东西。
The artist must be a servant of the unknown.
The ultimate situations - death, chance, guilt, and the uncertainty of the world - confront man with the reality of his existence.