He got it from nature as the pig got the rooting in the ground.
More Traditional Proverbs:
To turn an obstacle to one's advantage is a great step towards victory.Traditional
Cloudy mornings turn to clear afternoons.
Traditional
Your body is the temple of knowledge.
Traditional
Tears are best dried with your own hand
Traditional
Few people succeed at anything unless they enjoy it.
Traditional
Poems written upon awakening at dawn or about the dawn are called aubades.
Traditional