IV. There are several books extant by him, which are exceedingly good and admirable. They are in the form of dialogue; some being Ethical dialogues; three on the subject of Justice; one on Temperance; five on Piety; one on Manly Courage; one, and a second which is distinct from it, on Virtue; one on Happiness; one on Supremacy; one on Laws and questions connected with them; one on Names; one called Covenants; one called The Unwilling Lover; and the Clinias. Of the physical dialogues, one is on the Mind; one on the Soul; one on the Soul, and Nature and Appearances; one addressed to Democritus; one on the Heavenly Bodies; one on the State of Things in the Shades below; two on Lives; one on the Causes of Diseases; one on the Good; one on the doctrines of Zeno; one on the Doctrines of Metron. Of his grammatical dialogues, there are two on the Age of Homer and Hesiod; two on Archilochus and Homer. There are some on Music too; three on Euripides and Sophocles, and two on Music. There are also two volumes, Solutions of Questions concerning Homer; one on Speculations; one, the Three Tragedians; one volume of Characters; one dialogue on Poetry and the Poets; one on Conjecture; one on Foresight; four, being Explanations of Heraclitus; one, Explanations with reference to Democritus; two books of Solutions of Disputed Points; one, the Axiom; one on Species; one book of Solutions; one of Suppositions; one addressed to Dionysius. Of rhetorical works, there is the dialogue on the being an Orator, or the Protagoras. Of historical dialogues, there are some on the Pythagoreans, and on Inventions. Of these, some he has drawn up after the manner of Comic writers; as, for instance, the one about Pleasure, and that about Temperance. And some in the style of the Tragedians, as, for instance, the dialogues on the State of Things in the Shades below; and one on Piety, and that on Supremacy. And his style is a conversational and moderate one, suited to the characters of philosophers and men occupied in the military or political affairs conversing together. Some of his works also are on Geometry, and on Dialectics; and in all of them he displays a very varied and elevated style; and he has great powers of persuasion. V. He appears to have delivered his country when it was under the yoke of tyrants, by slaying the monarch, as Demetrius of Magnesia tells us, in his treatise on People of the Same Name.