There's really not much friendship between the girls on tour. There's so much rivalry and jealousy, so everyone just hangs out in their own camp. In the locker room and players' lounge, you can feel the jealousy. — Ana Ivanovic Copy Share Image
Man is essentially the imitative animal. His whole educabilityand in fact the whole history of civilization depend on this trait, which his strong tendencies to rivalry, jealousy, and acquisitiveness reinforce. — William James Copy Share Image
