There are two sorts of constancy in love one arises from continually discovering in the loved person new subjects for love, the other arises from our making a merit of being constant.
Francois de La RochefoucauldJealousy is in some measure just and reasonable, since it merely aims at keeping something that belongs to us or we think belongsto us, whereas envy is a frenzy that cannot bear anything that belongs to others.
Francois de La RochefoucauldNo man can love a second time the person whom he has once truly ceased to love.
Francois de La Rochefoucauld