The dramatic power of the dialogues of Plato appears to diminish as the metaphysical interest of them increases (compare Introd. to the Philebus). There are no descriptions of time, place or persons, in the Sophist and Statesman, but we are plunged at once into philosophical discussions; the poetical charm has disappeared, and those who have no taste for abstruse metaphysics will greatly prefer the earlier dialogues to the later ones. Plato is conscious of the change, and in the Statesman expressly accuses himself of a tediousness in the two dialogues, which he ascribes to his desire of developing the dialectical method. On the other hand, the kindred spirit of Hegel seemed to find in the Sophist the crown and summit of the Platonic philosophy--here is the place at which Plato most nearly approaches to the Hegelian identity of Being and Not-being. Nor will the great importance of the two dialogues be doubted by any one who forms a conception of the state of mind and opinion which they are intended to meet. The sophisms of the day were undermining philosophy; the denial of the existence of Not-being, and of the connexion of ideas, was making truth and falsehood equally impossible.
Plato was a philosopher in Classical Greece. He was also a mathematician, student of Socrates, writer of philosophical dialogues, and founder of the Academy in Athens, the first institution of higher learning in the Western world. Along with his mentor, Socrates, and his most-famous student, Aristotle, Plato helped to lay the foundations of Western philosophy and science. Alfred North Whitehead once noted: "the safest general characterization of the European philosophical tradition is that it consists of a series of footnotes to Plato."