BOOK II. IX. 11-18
faithful man while acts of the opposite character destroy him. And again, acts of the opposite character strengthen men of the opposite character; shamelessness strengthens the shameless man, faithlessness the faithless, abuse the abusive, wrath the wrathful, a disproportion between what he receives and what he pays out the miserly.
That is why the philosophers admonish us not to be satisfied with merely learning, but to add thereto practice also, and then training. For in the course of years we have acquired the habit of doing the opposite of what we learn and have in use opinions which are the opposite of the correct ones. If, therefore, we do not also put in use the correct opinions, we shall be nothing but the interpreters of other men's judgements. 15For who is there among us here and now that cannot give a philosophical discourse about good and evil? It will run like this: Of things that be, some are good, others evil, and others indifferent; now good things are virtues and everything that partakes in the virtues; evil are the opposite; while indifferent are wealth, health, reputation. Then, if we are interrupted in the midst of our speech by some unusually loud noise, or if someone in the audience laughs at us, we are upset. Where, you philosopher, are the things you are talking about? Where did you get what you were just saying? From your lips, and that is all. Why, then, do you pollute the helpful principles that are not your own? Why do you gamble about matters of the very utmost concern? For to store away bread and wine in a pantry is one thing, and to eat them is another. What is eaten is digested, distributed, becomes sinews, flesh, bones,
