Oneness

All things are linked with one another, and this oneness is sacred; there is nothing

that is not interconnected with everything else.  For things are interdependent,

and they combine to form this universal order.  There is only one universe made up

of all things, and one creator who pervades them; there is one substance and

one law, namely, common reason in all thinking creatures, and all truth is one--if, as we

believe, there is only one path of perfection for all beings who share the same mind.

---Marcus Aurelius

Quantum theory thus reveals a basic oneness of the universe. It shows that we cannot decompose the world into independently existing smallest units. As we penetrate into matter, nature does not show us any isolated “building blocks,” but rather appears as a complicated web of relations between the various parts of the whole. These relations always include the observer in an essential way. The human observer constitute the final link in the chain of observational processes, and the properties of any atomic object can be understood only in terms of the object's interaction with the observer. 

— Fritjof Capra

In The Tao of Physics

"Humanity from Space" website:  

http://www.pbs.org/program/humanity-from-space/

Big History Project website:

https://school.bighistoryproject.com/bhplive