Abandon wrongdoing. It can be done. If there were no likelihood, I would not ask you to do it.

But since it is possible and brings about blessings and happiness, I do ask you to abandon wrongdoing.

Cultivate doing good. It can be done. If it brought deprivation and sorrow, I would not ask you to do it.

But since it brings blessings and happiness, I do ask you: Cultivate doing good.

—Buddha Shakyamuni, Angutara Nikaya

Source: It Can Be Done!