That security which the laws of Great Britain give to every man that he shall enjoy the fruits of his own labor, is alone sufficient to make any country flourish... The natural effort of every individual is to better his own condition, when suffered to exert itself with freedom and security, is so powerful a principle, that it is alone, and without any assistance, ... capable of carrying on the society to wealth and prosperity.
Smith missed two things that made Great Britain unique - individualism and admiration for commerce. He missed them in the same way that a fish might not think about water. Smith grasped that taxes punished farmers in France to the point that they refused to improve their plots. And he understood that rulers and nobility in the Ottoman Empire and China often confiscated the wealth of successful people and so discouraged them from investing.