To what things then ought I to attend? First to those general (principles) and to have them in readiness, and without them not to sleep, not to rise, not to drink, not to eat, not to converse with men; that no man is master of another man's will, but that in the will alone is the good and the bad. No man, then, has the power either to procure for me any good or to involve me in any evil, but I alone myself over myself have power in these things. When, then, these things are secured to me, why need I be disturbed about external things? What tyrant is formidable, what disease, what poverty, what offense? "Well, I have not pleased a certain person." Is he then my work, my judgement? "No." Why then should I trouble myself about him? "But he is supposed to be some one." He will look to that himself; and those who think so will also. But I have One Whom I ought to please, to Whom I ought to subject myself, Whom I ought to obey, God and those who are next to Him. He has placed me with myself, and has put my will in obedience to myself alone, and has given me rules for the right use of it; and when I follow these rules in syllogisms, I do not care for any man who says anything else: in sophistical argument, I care for no man. Why then in greater matters do those annoy me who blame me? What is the cause of this perturbation? Nothing else than because in this matter I am not disciplined. For all knowledge despises ignorance and the ignorant; and not only the sciences, but even the arts. Produce any shoemaker that you please, and he ridicules the many in respect to his own work. Produce any carpenter.
First, then, we ought to have these in readiness, and to do nothing without them, and we ought to keep the soul directed to this mark, to pursue nothing external, and nothing which belongs to others, but to do as He has appointed Who has the power; we ought to pursue altogether the things which are in the power of the will, and all other things as it is permitted. Next to this we ought to remember who we are, and what is our name, and to endeavour to direct our duties toward the character of our several relations in this manner: what is the season for singing, what is the season for play, and in whose presence; what will be the consequence of the act; whether our associates will despise us, whether we shall despise them; when to jeer, and whom to ridicule; and on what occasion to comply and with whom; and finally, in complying how to maintain our own character. But wherever you have deviated from any of these rules, there is damage immediately, not from anything external, but from the action itself.
What then? is it possible to be free from faults? It is not possible; but tills is possible, to direct your efforts incessantly to being faultless. For we must be content if by never remitting this attention we shall escape at least a few errors. But now when you have said, "To-morrow I will begin to attend," you must be told that you are saying this, "To-day I will be shameless, disregardful of time and place, mean; it will be in the power of others to give me pain; to-day I will be passionate and envious." See how many evil things you are permitting yourself to do. If it is good to use attention to-morrow, how much better is it to do so to-day? if to-morrow it is in your interest to attend, much more is it to-day, that you may be able to do so to-morrow also, and may not defer it again to the third day.