Marcus Aurelius

Meditations 8.29

Translation

Wipe out thy imaginations by often saying to thyself: Now it is in my power to let no badness be in this soul, nor desire, nor any perturbation at all; but looking at all things I see what is their nature, and I use each according to its value.—Remember this power which thou hast from nature.

Marcus Aurelius, Meditations 8.29, translated by George Long