The true measure of a civilization is how it treats its weakest members.

诗歌必须始终具有道德目的；它应该在愉悦的同时教导。

The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.

你唯一应该努力超越的人就是昨天的自己。