The propensity to truck, barter and exchange one thing for another is common to all men, and to be found in no other race of animals.
Adam SmithIn this consists the difference between the character of a miser and that of a person of exact economy and assiduity. The one is anxious about small matters for their own sake; the other attends to them only in consequence of the scheme of life which he has laid down to himself.
Adam SmithFor a very small expence the public can facilitate, can encourage, and can even impose upon almost the whole body of the people, the necessity of acquiring those most essential parts of education.
Adam SmithThe education of the common people requires, perhaps, in a civilized and commercial society, the attention of the public more than that of people of some rank and fortune.
Adam SmithEvery individual is continually exerting himself to find out the most advantageous employment for whatever capital he can command. It is his own advantage, indeed, and not that of the society which he has in view. But the study of his own advantage naturally, or rather necessarily, leads him to prefer that employment which is most advantageous to society... He intends only his own gain, and he is in this, as in many other cases, led by an invisible hand to promote an end which was not part of his intention
Adam Smith