'"Free as a bird", we say, and envy the winged creatures fore their power on unrestricted movement in all the three dimensions. But, alas, we forget the dodo. Any bird that has learned how to grub up a good living without being compelled to use its wings will soon renounce the privilege of flight and remain forever grounded. Something analogous is true of human beings. If the bread is supplied regularly and copiously three times a day, many of them will be perfectly content to live by bread alone - or at least by bread and circuses alone.'
Aldous Huxley, Brave New World Revisited, p.152.