A tree is known by its fruit; a man by his deeds. A good deed is never lost; he who sows courtesy reaps friendship, and he who plants kindness gathers love. Basil of Caesarea
As long as men massacre animals, they will kill each other. Indeed, he who sows the seeds of murder and pain cannot reap the joy of love. Pythagoras
Who sows fear, reaps weapons. Friedrich Dürrenmatt
Who sows barley cannot reap wheat. Persian Proverb
He that sows shall also reap. Persian Proverb
Who sows what shall reap that. Estonian Proverb