A quote by Roman emperor Marcus Aurelius.
Constantly regard the universe as one living being,
having one substance and one soul;
and observe how all things have reference to one perception,
the perception of this one living being;
and how all things act with one movement;
and how all things are the cooperating causes of all things that exist;
observe too the continuous spinning of the thread and the structure of the web.
Meditations, IV. 40
Marcus Aurelius Antoninus (26 April 121 – 17 March 180 CE) was a Roman emperor from 161 to 180 CE and a Stoic philosopher. He was the last of the rulers known as the Five Good Emperors (a term coined some 13 centuries later by Niccolò Machiavelli), and the last emperor of the Pax Romana, an age of relative peace and stability for the Roman Empire.