对公正社会的渴望是人类状况的永久部分。

The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.

任何文化的艺术都是其社会关系的体现。

Computer programming is an art, because it applies accumulated knowledge to the world, because it requires skill and ingenuity, and especially because it produces objects of beauty.

智能是在世界中实现目标的能力。