千丈长堤,可能因为蝼蚁的洞穴而溃决;百尺高楼,可能因为烟囱的缝隙冒烟而焚毁。
The history of science is the history of men correcting their mistakes.
永远不要停止学习,因为生活永远不会停止教导。
The most important property of a program is whether it accomplishes the intention of its user.