平静:不要被琐事、普通或者不可避免的事所扰。
TRANQUILLITY. Be not disturbed at trifles, or at accidents common or unavoidable.
If you want to live a happy life, tie it to a goal, not to people or things.
The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.
录音室已成为新的音乐厅,麦克风成为新的评论家。