Sophocles (495-406 B.C.), as a poet, is universally allowed to have brought the drama to the highest degree of perfection of which it was susceptible. Indeed, the Greek mind may be said to have culminated in him; his writings overflow with that indescribable charm which only flashes through those of other poets. His plots are worked up with more skill and care than those of either of his great rivals, Aeschylus or Euripides, and he added the last improvement to the form of the drama by the introduction of a third actor,--a change which greatly enlarged the scope of the action. Of the many tragedies which he is said to have written, only seven are extant. Of these, the "Oedipus Tyrannus" is particularly remarkable for its skillful development, and for the manner in which the interest of the piece increases through each succeeding act. Of all the poets of antiquity, Sophocles has penetrated most deeply into the recesses of the human heart. His tragedies appear to us as pictures of the mind, as poetical developments of the secrets of our souls, and of the laws to which their nature makes them amenable. In Euripides (480-407 B.C.) we discover the first traces of decline in the Greek tragedy. He diminished its dignity by depriving it of its ideal character, and by bringing it down to the level of every-day life. All the characters of Euripides have that loquacity and dexterity in the use of words which distinguished the Athenians of his day; yet in spite of all these faults he has many beauties, and is particularly remarkable for pathos, so that Aristotle calls him the most tragic of poets. Eighteen of his tragedies are still extant. The contemporaries of the three great tragic poets, Aeschylus, Sophocles, and Euripides, must be regarded for the most part as far from insignificant, since they maintained their place on the stage beside them, and not unfrequently gained the tragic prize in competition with them; yet the general character of these poets must have been deficient in that depth and peculiar force of genius by which these great tragedians were distinguished. If this had not been the case, their works would assuredly have attracted greater attention, and would have been read mere frequently in later times.