Meditations by Marcus Aurelius Book 10 Page 5

Either with Epicurus, we must fondly imagine the atoms to be the cause of all things, or we must needs grant a nature. Let this then be thy first ground, that thou art part of that universe, which is governed by nature.

Then secondly, that to those parts that are of the same kind and nature as thou art, thou hast relation of kindred. For of these, if I shall always be mindful, first as I am a part, I shall never be displeased with anything, that falls to my particular share of the common chances of the world. For nothing that is behoveful unto the whole, can be truly hurtful to that which is part of it. For this being the common privilege of all natures, that they contain nothing in themselves that is hurtful unto them; it cannot be that the nature of the universe (whose privilege beyond other particular natures, is,