Jn-Jcqs Rss (K: , S: ; Frnch: [ʒɑ̃.ʒk ʁs]; 28 Jn 1712 – 2 Jly 1778) ws Gnvn phlsphr (phlsph), wrtr, nd cmpsr. Hs pltcl phlsphy nflncd th prgrss f th g f nlghtnmnt thrght rp, s wll s spcts f th Frnch Rvltn nd th dvlpmnt f mdrn pltcl, cnmc, nd dctnl thght.
Hs Dscrs n nqlty, whch rgs tht prvt prprty s th src f nqlty, nd Th Scl Cntrct, whch tlns th bss fr lgtmt pltcl rdr, r crnrstns n mdrn pltcl nd scl thght. Rss's sntmntl nvl Jl, r th Nw Hls (1761) ws mprtnt t th dvlpmnt f prrmntcsm nd rmntcsm n fctn. Hs ml, r n dctn (1762) s n dctnl trts n th plc f th ndvdl n scty. Rss's tbgrphcl wrtngs—th psthmsly pblshd Cnfssns (cmpltd n 1770), whch nttd th mdrn tbgrphy, nd th nfnshd Rvrs f th Sltry Wlkr (cmpsd 1776–1778)—xmplfd th lt 18th-cntry "g f Snsblty", nd ftrd n ncrsd fcs n sbjctvty nd ntrspctn tht ltr chrctrzd mdrn wrtng.