-reviewwhathasbeenlearnedandlearnsth.new;gainnewinsightsthroughrestudyingoldmaterial;learnthenewbyrestudyingtheold;Reviewingthepasthelpsonetounderstandthepresent.;reviewtheoldandlearnthenew;Reviewthepastandyou'llknowbetterthepresent.;Reviewwhatyouhavelearnedandknowwhatisnew.;Reviewwhatyouhavelearntinordertolearnsth.new.:
“Thosewholearnthenewbyrestudyingtheoldmaybeteachers.”“温故知新，可以为师矣。”