Marcus Aurelius
Meditations 6.38
Frequently consider the connection of all things in the universe and their relation to one another. For in a manner all things are implicated with one another, and all in this way are friendly to one another; for one thing comes in order after another, and this is by virtue of the active movement and mutual conspiration and the unity of the substance.
Marcus Aurelius, Meditations 6.38, translated by George Long
Meditate often on the intimate union and mutual interdependence of all things in the Universe. For in a manner all things are mutually intertwined, and thus all things have a liking for one another. For these things are consequent one on another by reason of their contracting and expanding motion, the sympathy that breathes through them, and the unity of all substance.
Marcus Aurelius, Meditations 6.38, translated by C. R. Haines