应对不自由世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反抗。

煤炭的未来在于清洁高效利用。

The pursuit of knowledge in computer science is a journey through the landscape of logic and creativity.

A city’s greatness is measured by its public spaces.

永远不要低估玩家的智慧。