The annual produce of the land and labour of any nation can be increased in its value by no other means, but by increasing either the number of its productive labourers, or the productive powers of those labourers who had before been employed.
Adam SmithGreat ambition, the desire of real superiority, of leading and directing, seems to be altogether peculiar to man, and speech is the great instrument of ambition.
Adam SmithIn the long-run the workman may be as necessary to his master as his master is to him, but the necessity is not so immediate.
Adam Smith