True wisdom lies in admitting one's ignorance.
心理学理论的价值是由其实用性衡量的。
The interplay between randomness and structure is a central theme in both mathematics and computer science.
生命太短暂,不能浪费时间恨任何人。
International politics is a brutal and dangerous business, and it is likely to remain that way.
我不知道如果我的生活中没有音乐,我会做什么。
毁灭自己的错误胜过毁灭他人的错误。