Nam si exaudit rationem sequiturque qua ducitur, iam non est ira, cuius proprium est contumacia; si vero repugnat et non ubi iussa est quiescit sed libidine ferocia-que provehitur, tam inutilis animi minister est quam miles qui signum receptui neglegit. Itaque si modum adhiberi sibi patitur, alio nomine appellanda est, desit ira esse, quam effrenatam indomitamque intellego.
For if anger listens to reason and follows where reason leads, then it is already not anger, of which obstinacy is a proper quality; if, however, it fights back and does not become quiet when it has been ordered, but is carried forward by its desire and ferocity, then it is as useless a servant of the soul as a soldier who disregards the signal for falling back. And thus, if it suffers a measure to be applied to itself, then it must be called by a different name, and it ceases to be anger, which I understand to be unrestrained and untamable.
— Seneca, De ira 1.9.2–3
“[Q]ualities which we ought to possess become better and more desirable the more extensive they are: if justice is a good thing, no one will say that it would be better if any part were subtracted from it; if bravery is a good thing, no one would wish it to be in any way curtailed: consequently the greater anger is, the better it is, for whoever objected to a good thing being increased? But it is not expedient that anger should be increased: therefore it is not expedient that it should exist at all, for that which grows bad by increase cannot be a good thing.”
— Seneca, On Anger.
“How long, then, will you delay to demand of yourself the noblest improvements, and in no instance to transgress the judgments of reason? You have received the philosophic principles with which you ought to be conversant; and you have been conversant with them. For what other master, then, do you wait as an excuse for this delay in self-reformation? You are no longer a boy, but a grown man. If, therefore, you will be negligent and slothful, and always add procrastination to procrastination, purpose to purpose, and fix day after day in which you will attend to yourself, you will insensibly continue to accomplish nothing, and, living and dying, remain of vulgar mind. This instant, then, think yourself worthy of living as a man grown up and a proficient. Let whatever appears to be the best, be to you an inviolable law. And if any instance of pain or pleasure, glory or disgrace, be set before you, remember that now is the combat, now the Olympiad comes on, nor can it be put off; and that by one failure and defeat honor may be lost – or won. Thus Socrates became perfect, improving himself by everything, following reason alone. And though you are not yet a Socrates, you ought, however, to live as one seeking to be a Socrates.”
— Epictetus, Enchirdion 51.
”Still,” it is objected, “laws do not always make us do what we ought to do; and what else are laws than precepts mingled with threats?” Now first of all, the laws do not persuade just because they threaten; precepts, however, instead of coercing, correct men by pleading. Again, laws frighten one out of communicating crime, while precepts urge a man on to his duty.
— Seneca, Ep. XCIV. On the value of advice
“If a philosopher (appears) in purple, why not in glided slippers too?”
— Tertullian, De pallio IV.6