Men become richer not only by increasing their existing wealth but also by decreasing their expenditure.
AristotleIf purpose, then, is inherent in art, so is it in Nature also. The best illustration is the case of a man being his own physician, for Nature is like that - agent and patient at once.
AristotleMen pay most attention to what is their own: they care less for what is common; or, at any rate, they care for it only to the extent to which each is individually concerned.
Aristotle