Jeff Eckmann

“Oddly, the most well-known phrase in the book, the vaunted “invisible hand,” mentioned earlier, appears only once, treated with a mere flick by Smith. He notes that by pursuing personal profits, the typical businessman is “led by an invisible hand to promote an end which was no part of his intention. Nor is it always the worse for the society that it was no part of it.” Note the guarded language of the second sentence, which is rarely included (or remembered) by those who make use of the famous phrase, or invoke some version of the invisible handwave. “Nor it is always the worse for society” is hardly the same thing as an assertion that things will turn out for the best.”
― Richard H. Thaler, Misbehaving: The Making of Behavioral Economics