In nature there are neither rewards nor punishments; there are consequences.
Giving credit where credit is due is a very rewarding habit to form. Its rewards are inestimable.
A circus is like a mother in whom one can confide and who rewards and punishes.
It is indeed hard for the strong to be just to the weak, but acting justly always has its rewards.
I do not believe in the God of theology who rewards good and punishes evil.