A chameleon does not leave one tree until he is sure of another. 
A change is as good as a rest
A known mistake is better than an unknown truth.
Ask the experienced rather than the learned.
Believe what you see and lay aside what you hear.
Every day of your life is a page of your history.
Every sun has to set
No cure, no pay
Write the bad things that are done to you in sand, but write the good things that happen to you on a piece of marble.