Three things it is best to avoid: a strange dog, a flood, and a man who thinks he is wise.
More Welsh Proverbs:
If you would get ahead, be a bridge.Welsh
Conscience is the nest where all good is hatched.
Welsh
Birds of a color fly to the same place.
Welsh
Bad news goes about in clogs, Good news in stockinged feet.
Welsh
He that would be a leader must be a bridge.
Welsh
If you would be praised, die.
Welsh