The danger of the past was that men became slaves. The danger of the future is that men may become robots.
Selfish persons are incapable of loving others, but they are not capable of loving themselves either.
Greed is a bottomless pit which exhausts the person in an endless effort to satisfy the need without ever reaching satisfaction.
Immature love says: "I love you because I need you". Mature love says "I need you because I love you".