To conelude, then, the orator will not seek to make more
money than is sufficient for his needs, and even if he
is poor, he will not regard his payment as a fee, but
rather as the expression of the principle that one
good turn deserves another, since he will be well
aware that he has conferred far more than he receives.
For it does not follow that because his services
ought not to be sold, they should therefore be
unremunerated. Finally, gratitude is primarily the
business of the debtor.