我们革命的目的是为众生谋幸福，因不愿少数满洲人专利，故要民族革命；不愿君主一人专利，故要政治革命；不愿少数富人专利，故要社会革命。这三样有一样做不到，也不是我们的本意。达了这三样目的之后，我们中国当成为至完美的国家。
——《在东京（民报）创刊周年庆祝大会的演说》（1906年12月2日）
The teacher should not teach as if he were pouring knowledge into an empty vessel, but rather as if he were lighting a fire.
Mathematics is not a spectator sport. You have to get involved.
有些人感受雨，而其他人只是被淋湿。
The only way to make sense out of change is to plunge into it, move with it, and join the dance.