He that will not when he may, when he will he shall have nay.
More Spanish Proverbs:
The best or the worst for a man is his wife.Spanish
Large thongs of another man's leather.
Spanish
In frosty weather a nail is worth a horse.
Spanish
Fear guards the vineyard.
Spanish
Pray to God, but hammer away.
Spanish
The first duty of a soldier is obedience.
Spanish