I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.  

我们行业的创新并不总是意味着高科技，有时是把基础工作做得更好。

灵魂的净化是人生的最高追求。

The future is a promise we may not live to see.

如果你没有得到奇迹，你仍然可以成为别人的奇迹。