Make your bargain before beginning to plow.
More Arab Proverbs:
He who looks up too much gets a pain in the neck.Arab
You won't gain knowledge by drinking ink.
Arab
If the king says that it is night in the middle of the day, look up at the stars.
Arab
No crowd ever waited at the gates of patience.
Arab
The dogs bark, but the caravan moves on.
Arab
Trust makes way for treachery.
Arab