Everyone you meet is fighting a battle you know nothing about. Be kind. Always.
旧世界里,时间30%用来创建伟大服务,70%用来为它吆喝。新世界里,比例正好倒过来。
一个问题如果在计算机上可以快速解决,那么它属于P类问题;如果一个解可以快速验证,那么它属于NP类问题。
能源安全是国家战略安全的重要组成部分,我们必须牢牢把握在自己手中。
The principle goal of education is to create men who are capable of doing new things, not simply of repeating what other generations have done.