我是行尸走肉，但我只是一个说话的脑袋，一个漂浮的僵尸，但我有一个地下兄弟。
"The beauty of computational complexity lies in its ability to classify problems based on their inherent difficulty."
Quality should never be compromised for the sake of speed.
Stray birds of summer come to my window to sing and fly away. And yellow leaves of autumn, which have no songs,flutter and fall there with a sigh.
挑战在于创建能够将私人激励与知识的社会价值相结合的机构。