One cannot know what a man really is by the end of a fortnight. But if we do not venture, somebody else will.
跟一个人相处了两个星期,不可能就此了解他究竟是怎样一个人。不过,要是我们不去尝试尝试,别人可少不了要尝试的。
过去总是紧张的,未来是完美的。
关系模型基于谓词逻辑和集合论,为数据库管理提供了坚实的数学基础。
I'm the reason your country can't sleep.
The faster technology evolves, the more we must invest in human wisdom.