He bites his tongue who speaks in haste.
More Traditional Proverbs:
One flower does not bring spring.Traditional
May all your weeds be wildflowers.
Traditional
A mind is like a parachute it only functions when it is open.
Traditional
One who looks for a friend without faults will have none.
Traditional
Charity, not cheating
Traditional
A Summer fog for fair, a Winter fog for rain.
Traditional