The past is a shadow that follows you everywhere.

Time is the only critic without ambition.

自知之明的人，不埋怨人；了解命运的人，不埋怨天；埋怨别人的人，遭遇穷困；埋怨上天的人，没有志向。

The human being is always more than what he has done; he is also what he can do.