Classical Electrodynamics in Terms of Direct Interparticle Action

${"...\phantom{\rule{0ex}{0ex}}\mathit{the}\mathit{energy}\mathit{tensor}\mathit{can}\mathit{be}\mathit{regarded}\mathit{only}\mathit{as}\mathit{a}\mathit{provisional}\mathit{means}\mathit{of}\mathit{representing}\mathit{matter}.\phantom{\rule{0ex}{0ex}}\mathit{I}\mathit{n}\phantom{\rule{0ex}{0ex}}\mathit{r}\mathit{e}\mathit{a}\mathit{l}\mathit{i}\mathit{t}\mathit{y},\phantom{\rule{0ex}{0ex}}\mathit{m}\mathit{a}\mathit{t}\mathit{t}\mathit{e}\mathit{r}\phantom{\rule{0ex}{0ex}}\mathit{c}\mathit{o}\mathit{n}\mathit{s}\mathit{i}\mathit{s}\mathit{t}\mathit{s}\phantom{\rule{0ex}{0ex}}\mathit{o}\mathit{f}\phantom{\rule{0ex}{0ex}}\mathit{e}\mathit{l}\mathit{e}\mathit{c}\mathit{t}\mathit{r}\mathit{i}\mathit{c}\mathit{a}\mathit{l}\mathit{l}\mathit{y}\phantom{\rule{0ex}{0ex}}\mathit{c}\mathit{h}\mathit{a}\mathit{r}\mathit{g}\mathit{e}\mathit{d}\phantom{\rule{0ex}{0ex}}\mathit{p}\mathit{a}\mathit{r}\mathit{t}\mathit{i}\mathit{c}\mathit{l}\mathit{e}\mathit{s}...."}^{3}$