He gains a great deal who loses a vain hope.
More Italian Proverbs:
Don't reject the good together with the bad.Italian
The loquacity of fools is a lecture to the wise.
Italian
He who never begins will never end.
Italian
Not having enough is like not having anything.
Italian
Let him who is well off stay where he is.
Italian
Lilies are whitest in a blackmoor's hand.
Italian