What is the meaning of this quote? "a leader is best when people barely know he exists; when his work is done, his aim fulfilled, they will say: we did it ourselves."- laozi

The meaning of this quote "A leader is best when people barely know he exists; when his work is done, his aim fulfilled, they will say; we did it ourselves" means if the leader is unknown to many people once he has finished or achieved a remarkable goal other people (such as Laozi) can steal the glory and be remembered for something they didn't do. 

To clear or to keep awake