Quotes about Self-sufficing

And therefore, if the earlier forms of society are natural, so is the state, for it is the end of them, and the [completed] nature is the end. For what each thing is when fully developed, we call its nature, whether we are speaking of a man, a horse, or a family. Besides, the final cause and end of a thing is the best, and to be self-sufficing is the end and the best.