1.Time tries all.

路遥知马力，日久见人心。

2.Tommorrow never comes.

我生待明日，万事成蹉跎。

3.God helps those who help themselves.

天道酬勤。

4.It is easy to open a shop but hard to keep it always open.

创业容易守业难。

5.He is not fit to command others that cannot command himself.

正人先正己。