A stone thrown at the right time is better than a stone thrown at the wrong time.
More Persian Proverbs:
The branch that bears the most fruit bends itself thankfully towards the ground.Persian
Courtesie is cumbersome to them that ken it not.
Persian
A thief is a king until he is caught.
Persian
It's better to fly and stay alive than to die a hero.
Persian
Stretch your foot to the length of your blanket.
Persian
Giving advice to the ignorant is like the rain falling on muddy ground.
Persian