"Education is the most powerful weapon which you can use to change the world."

【释义】喜欢高谈阔论的人，会因为说话太多而失言。【延伸】祸从口出，言多必失，话太多的人，说得越多，往往错的就越多，而且，没有人会喜欢一个多嘴多舌的人。会说话是好事，要讲分寸，说过头了，还不如不说。

The past is a shadow that follows us, always present, always influencing our steps.

The worth of a psychological theory is measured by its usefulness.