"Science is the great antidote to the poison of enthusiasm and superstition."
— Adam Smith (The Wealth of Nations)

"The man whose whole life is spent in performing a few simple operations, of which the effects are perhaps always the same, or very nearly the same, has no occasion to exert his understanding or to exercise his invention in finding out expedients for removing difficulties which never occur. He naturally loses, therefore, the habit of such exertion, and generally becomes as stupid and ignorant as it is possible for a human creature to become. "
— Adam Smith (The Wealth of Nations)

"Never complain of that of which it is at all times in your power to rid yourself."
— Adam Smith (The Theory of Moral Sentiments)