Valentine had long ago observed that in a society that expected chastity and fidelity, like Lusitania, the adolescents who controlled and channeled their youthful passions were the ones who grew up to be both strong and civilized. Adolescents in such a community who were either too weak to control themselves or too contemptuous of society's norms to try usually ended up being either sheep or wolves- either mindless members of the herd or predators who took what they could and gave nothing.
Orson Scott CardGood people aren't good because they never cause harm to others. They're good because they treat others the best way they know how, with the understanding that they have.
Orson Scott CardNature can't evolve a species that hasn't the will to survive. Individuals might be bred to sacrifice themselves, but the race as a whole can never cease to exist.
Orson Scott Card