He who works by himself does the work of three.
More Italian Proverbs:
It is always good to have two strings to your bow.Italian
Large trees give more shade than fruit.
Italian
While two dogs are fighting for a bone, a third runs away with it.
Italian
Good riding at two anchors men have told, For it one break, the other yet may hold.
Italian
Money is an epitome of human power.
Italian
All are brave when the enemy flies.
Italian