Ethics is in origin the art of recommending to others the sacrifices required for cooperation with oneself.Bertrand Russell
A sense of duty is useful in work but offensive in personal relations. People wish to be liked, not to be endured with patient resignation.Bertrand Russell
Machines are worshipped because they are beautiful and valued because they confer power; they are hated because they are hideous and loathed because they impose slavery.Bertrand Russell
Gratitude is a duty which ought to be paid, but which none have a right to expect.Jean-Jacques Rousseau
To love our neighbor as ourselves is such a truth for regulating human society, that by that alone one might determine all the cases in social morality.John Locke
A free life cannot acquire many possessions, because this is not easy to do without servility to mobs or monarchs.Epicurus