Vitae philosophorum

Diogenes Laertius

Diogenes Laertius. Hicks, R. D., editor. Cambridge, MA.: Harvard University Press; London: William Heinemann Ltd., 1925.

The second division is that which the rhetors employ in written compositions, whether composed for display or praise or blame, or for accusation. Hence this division is termed rhetorical. The third division of speech is that of private persons conversing with one another; this is called the mode of speech of ordinary life. Another division of speech is the language of those who converse by means of short questions and answers; this kind is called dialectical. The fifth division is the speech of craftsmen conversing about their own subjects; this is called technical language. Thus speech is either political, or rhetorical, or that of ordinary conversation, or dialectical, or technical.

Music has three divisions. One employs the mouth alone, like singing. The second employs both the

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mouth and the hands, as is the case with the harper singing to his own accompaniment. The third division employs the hands alone; for instance, the music of the harp. Thus music employs either the mouth alone, or the mouth and the hands, or the hands alone.

Nobility has four divisions. First, when the ancestors are gentle and handsome and also just, their descendants are said to be noble. Secondly, when the ancestors have been princes or magistrates, their descendants are said to be noble. The third kind arises when the ancestors have been illustrious; for instance, through having held military command or through success in the national games. For then we call the descendants noble.

The last division includes the man who is himself of a generous and high-minded spirit. He too is said to be noble. And this indeed is the highest form of nobility. Thus, of nobility, one kind depends on excellent ancestors, another on princely ancestors, a third on illustrious ancestors, while the fourth is due to the individual’s own beauty and worth.

Beauty has three divisions. The first is the object of praise, as of form fair to see. Another is serviceable; thus an instrument, a house and the like are beautiful for use. Other things again which relate to customs and pursuits and the like are beautiful because beneficial. Of beauty, then, one kind is matter for praise, another is for use, and another for the benefit it procures.

The soul has three divisions. One part of it is rational, another appetitive, and a third irascible. Of these the rational part is the cause of purpose, reflection, understanding and the like. The appetitive

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part of the soul is the cause of desire of eating, sexual indulgence and the like, while the irascible part is the cause of courage, of pleasure and pain, and of anger. Thus one part of the soul is rational, another appetitive, and a third irascible.

Of perfect virtue there are four species: prudence, justice, bravery and temperance.

Of these prudence is the cause of right conduct, justice of just dealing in partnerships and commercial transactions. Bravery is the cause which makes a man not give way but stand his ground in alarms and perils. Temperance causes mastery over desires, so that we are never enslaved by any pleasure, but lead an orderly life. Thus virtue includes first prudence, next justice, thirdly bravery, and lastly temperance.

Rule has five divisions, one that which is according to law, another according to nature, another according to custom, a fourth by birth, a fifth by force.