"Perhaps you know some well-off families who do not seem to suffer from their riches. They do not overeat themselves; they find occupations to keep themselves in health; they do not worry about their position; they put their money into safe investments and are content with a low rate of interest; and they bring up their children to live simply and do useful work. But this means that they do not live like rich people at all, and might therefore just as well have ordinary incomes."

Source: George Bernard Shaw (2015). “The Collected Plays of George Bernard Shaw (Illustrated): Including Renowned Titles like Pygmalion, Mrs. Warren’s Profession, Candida, Arms and The Man, Man and Superman, The Inca Of Perusalem, Macbeth Skit, Caesar and Cleopatra, Androcles And The Lion”, p.477, e-artnow