Some, on the ground that rhetoric is a virtue, make the
material with which it deals to be the whole of life.
Others, on the ground that life regarded as a whole
does not provide material for every virtue, since
most of them are concerned only with departments
of life (justice, courage and self-control each having
their own duties and their own end), would consequently restrict oratory to one particular department
of life and place it in the practical or pragmatic
department of ethics, that is to say the department
of morals which deals with the business of life.