Carlo M. Cipolla quotes
No matter how high are one's estimates of human stupidity, one is repeatedly and recurrently startled by the fact that:a) people whom one had once judged rational and intelligent turn out to be unashamedly stupid.b) day after day, with unceasing monotony, one is harassed in one's activities by stupid individuals who appear suddenly and unexpectedly in the most inconvenient places and at the most improbable moments.
Carlo M. Cipolla
Our daily life is mostly, made of cases in which we lose money and/or time and/or energy and/or appetite, cheerfulness and good health because of the improbable action of some preposterous creature who has nothing to gain and indeed gains nothing from causing us embarrassment, difficulties or harm. Nobody knows, understands or can possibly explain why that preposterous creature does what he does. In fact there is no explanation - or better there is only one explanation: the person in question is stupid.
Carlo M. Cipolla