Eutopian morals show how mistaken are modern critics who keep complaining that science has made great progress in improving material life but has lagged in doing the same for the ethical. There was no progress to make. Men have known the principles of justice, decency, tolerance, magnanimity from an early date. Acting on them is another matter – nor does it seem easier for us to act on our best scientific conclusions when we deal with bodily matters: an age that has made war on smoking and given up the use of the common towel and the common cup should prohibit shaking hands.
(from From Dawn to Decadence by Jacques Barzun)
9*/10. The complete review is here.