-Athing[Everything]hasitscause.;Itisbynomeansaccidental.;notentirelydevoidoftruth;Thecauseisnotfartoseek.;Thereisa[good]reason[cause]forit.;There'snosmokewithoutfire.;Thishappensnotwithoutreason.:
Thesethingshappenforagoodreason;theyhavesocialroots.事出有因，各有社会基础。