Life in harmony with the universe is what is good; and harmony with the universe is the same thing as obedience to the will of God.
 Bertrand Russell, A History of Western Philosophy (1945). copy citation

Context

“What is impersonal in the Meditations agrees closely with Epictetus. Marcus Aurelius is doubtful about immortality, but says, as a Christian might: “Since it is possible that thou mayst depart from life this very moment, regulate every act and thought accordingly.” Life in harmony with the universe is what is good; and harmony with the universe is the same thing as obedience to the will of God. “Everything harmonizes with me which is harmonious to thee, O Universe. Nothing for me is too early or too late, which is in due time for thee. Everything is fruit to me which thy seasons bring, O Nature:” source