Marcus Aurelius
Meditations 7.68
It is in thy power to live free from all compulsion in the greatest tranquillity of mind, even if all the world cry out against thee as much as they choose, and even if wild beasts tear in pieces the members of this kneaded matter which has grown around thee. For what hinders the mind in the midst of all this from maintaining itself in tranquillity and in a just judgment of all surrounding things and in a ready use of the objects which are presented to it, so that the judgment may say to the thing which falls under its observation: This thou art in substance [reality], though in men's opinion thou mayest appear to be of a different kind; and the use shall say to that which falls under the hand: Thou art the thing that I was seeking; for to me that which presents itself is always a material for virtue both rational and political, and in a word, for the exercise of art, which belongs to man or God. For everything which happens has a relationship either to God or man, and is neither new nor difficult to handle, but usual and apt matter to work on.
Marcus Aurelius, Meditations 7.68, translated by George Long
Thou mayest live out thy life with none to constrain thee in the utmost peace of mind even though the whole world cry out against thee what they will, even though beasts tear limb from limb this plastic clay that has encased thee with its growth. For what in all this debars the mind from keeping itself in calmness, in a right judgment as to its environment, and in readiness to use all that is put at its disposal? so that the judgment can say to that which meets it: In essential substance thou art this, whatever else the common fame would have thee be. And the use can say to the object presented to it: Thee was I seeking. For the thing in hand is for me ever material for the exercise of rational and civic virtue, and in a word for the art of a man or of God. For everything that befalls is intimately connected with God or man, and is not new or difficult to deal with, but familiar and feasible.
Marcus Aurelius, Meditations 7.68, translated by C. R. Haines