笑,全世界便与你同声笑,哭,你便独自哭。
Mathematics is the foundation upon which all sciences are built.
The best way to predict the future is to create it.
我非常敬佩那些已婚、有孩子并且全职工作的女性。我不知道你们是怎么做到的,我觉得我做不到。