No matter how good you get you can always get better, and that's the exciting part.

一个公开的民意测验无法代替思考。

The growing good of the world is partly dependent on unhistoric acts; and that things are not so ill with you and me as they might have been, is half owing to the number who lived faithfully a hidden life, and rest in unvisited tombs. ― George Eliot, Middlemarch

There is no doubt that in exchanging a self-centered for a selfless life we gain enormously in self-esteem. The vanity of the selfless, even those who practice utmost humility, is boundless.

知识是人类的最高财富，而分享知识则是最高的慷慨。