The only time you should ever look back is to see how far you've come.

行为的基本法则对所有生物都是一样的。

动口不如动手去干，求人不如自己亲自去办。

Success is no accident. It is hard work, perseverance, learning, studying, sacrifice and most of all, love of what you are doing or learning to do.

你知道得越多，就越意识到自己知道得多么少。