_c._ Various other points of contact naturally suggest themselves between the Gorgias and other dialogues, especially the Republic, the Philebus, and the Protagoras. There are closer resemblances both of spirit and language in the Republic than in any other dialogue, the verbal similarity tending to show that they were written at the same period of Plato’s life. For the Republic supplies that education and training of which the Gorgias suggests the necessity. The theory of the many weak combining against the few strong in the formation of society (which is indeed a partial truth), is similar in both of them, and is expressed in nearly the same language. The sufferings and fate of the just man, the powerlessness of evil, and the reversal of the situation in another life, are also points of similarity. The poets, like the rhetoricians, are condemned because they aim at pleasure only, as in the Republic they are expelled the State, because they are imitators, and minister to the weaker side of human nature. That poetry is akin to rhetoric may be compared with the analogous notion, which occurs in the Protagoras, that the ancient poets were the Sophists of their day. In some other respects the Protagoras rather offers a contrast than a parallel. The character of Protagoras may be compared with that of Gorgias, but the conception of happiness is different in the two dialogues; being described in the former, according to the old Socratic notion, as deferred or accumulated pleasure, while in the Gorgias, and in the Phaedo, pleasure and good are distinctly opposed. This opposition is carried out from a speculative point of view in the Philebus. There neither pleasure nor wisdom are allowed to be the chief good, but pleasure and good are not so completely opposed as in the Gorgias. For innocent pleasures, and such as have no antecedent pains, are allowed to rank in the class of goods. The allusion to Gorgias’ definition of rhetoric (Philebus, 58 A, B; cp. Gorg. 452 D, E), as the art of persuasion, of all arts the best, for to it all things submit, not by compulsion, but of their own free will—marks a close and perhaps designed connection between the two dialogues. In both the ideas of measure, order, harmony, are the connecting links between the beautiful and the good. [Sidenote: _Some minor points._] In general spirit and character, that is, in irony and antagonism to public opinion, the Gorgias most nearly resembles the Apology, Crito, and portions of the Republic, and like the Philebus, though from another point of view, may be thought to stand in the same relation to Plato’s theory of morals which the Theaetetus bears to his theory of knowledge.