The opinion may be wrong; in that case, if a man sticks to it, prompted by mere self-assertion and love of victory, it is a species of incontinence.

One of the virtues of the continent man is to be open to persuasion, and to desert one's resolutions for a noble end (IX.).

Incontinence is like sleep or drunkenness as opposed to wakeful knowledge.

The incontinent man is like a state having good laws, but not acting on them.

The incontinence of passion is more curable than that of weakness; what proceeds from habit more than what is natural (X.).
The Eighth and Ninth Books contain the treatise on Friendship.
The subject deserves a place in an Ethical treatise, because of its connexion with virtue and with happiness.