Carlo M. Cipolla, The Basic Laws of Human Stupidity (1986)
“ The fact is that reasonable people have difficulty in conceiving and understanding unreasonable behaviour. But let us abandon the lofty plane of theory and let us look pragmatically at our daily life. We all recollect occasions in which a fellow took an action which resulted in his gain and our loss: we had to deal with a bandit. We also recollect cases in which a fellow took an action which resulted in his loss and our gain: we had to deal with a helpless person. ”
