Hate cannot drive out hate, only love can do that.
Sadnesscannotdriveoutsadness,onlyhappinesscandothat;PessimsmcannotdriveoutPessimsm,onlyoptimismcandothat.Idlenesscannotdriveoutidleness,onlydiligencecandothat;Stupidcannotdriveoutstupid,onlywisdomcand