Full Idea
There are about fifteen fields, whose quanta are elementary particles (electrons, quarks, muons, neutrinos, Higgs, and little else), plus a few fields similar to the electromagnetic one, which describe forces at a nuclear scale, with quanta like photons.
Gist of Idea
There are about fifteen particles fields, plus a few force fields
Source
Carlo Rovelli (Reality is Not What it Seems [2014], 04)
Book Reference
Rovelli,Carlo: 'Reality is Not What it Seems', ed/tr. Carnell/Segre [Penguin 2016], p.109
A Reaction
According to Rovelli, this sentence describes the essence of physical reality.