We can't really hope to understand the vagaies of the physics of the material universe without trying to account for newton's fourth law:

All mass is attracted equally to all matter in all directions.
I am not going to pretend to have read Pricipia but I did come across that (in one of his Schollia IIRC.) What it means is that all tidal attraction is occupied by all other tidal attractions. And if you carefully consider Cavendish then you will realise the exacting meanings of action and reaction.

So there are apparently only the one scholium; an addendum to the initial book he brought in to defend himself against wet sheep.

In all the classic explanation, Newton makes no effort to explain an initial cause; for it is beyond all men to describe and we remain free to believe what we can understand about what we wish to study.

And in that case I wish to study the jump states of gravity's implications on British weather and world geo-physics including abreactions to the weather causing "politics" and accidents.