“ But if this is so, that nature which is the most perfect and the most comprehensive of all natures, cannot fall short of the skill of art Now all arts do the inferior things for the sake of the superior; therefore the universal nature does so too. ”
 Marcus Aurelius, Meditations (c. 170 - 180). copy citation

add

“For this also is a weakness, to be vexed at them, as well as to be diverted from thy course of action and to give way through fear; for both are equally deserters from their post,—the man who does it through fear, and the man who is alienated from him who is by nature a kinsman and a friend.
10. There is no nature which is inferior to art, for the arts imitate the natures of things. But if this is so, that nature which is the most perfect and the most comprehensive of all natures, cannot fall short of the skill of art Now all arts do the inferior things for the sake of the superior; therefore the universal nature does so too. And, indeed, hence is the origin of justice, and in justice the other virtues have their foundation: for justice will not be observed, if we either care for middle things [things indifferent] , or are easily deceived and careless and changeable (v.” source