Full Idea
I believe that both gravity and elasticity are in matter only because of the structure of the system and can be explained mechanically or through impulsion.
Gist of Idea
Gravity is within matter because of its structure, and it can be explained.
Source
Gottfried Leibniz (Letters to Thomas Burnett [1703], 1699 draft)
Book Reference
Leibniz,Gottfried: 'Philosophical Essays', ed/tr. Arlew,R /Garber,D [Hackett 1989], p.289
A Reaction
The significance of this remark is that gravity is held (in full knowledge of Newton's work) to be within matter, and not imposed from the outside. I believe we now postulate a particle as part of the explanation.
Related Idea
Idea 12178 That gravity should be innate and essential to matter is absurd [Newton]