Pythagoras used to say that life resembles the Olympic Games: a few people strain their muscles to carry off a prize; others bring trinkets to sell to the crowd for gain; and some there are, and not the worst, who seek no other profit than to look at the show and see how and why everything is done; spectators of the life of other people in order to judge and regulate their own.
Michel de MontaigneCourtesy is a science of the highest importance. It is...opening a door that we may derive instruction from the example of others, and at the same time enabling us to benefit them by our example, if there be anything in our character worthy of imitation.
Michel de Montaigne