We have in fact, two kinds of morality, side by side: one that we preach, but do not practice, and another that we practice, but seldom preach.
Without civic morality communities perish; without personal morality their survival has no value.
For over two thousand years it has been the custom among earnest moralists to decry happiness as something degraded and unworthy
Science, by itself cannot, supply us with an ethic.
Official morality has always been oppressive and negative: it has said "thou shalt not," and has not troubled to investigate the effect of activities not forbidden by the code.