Again. Let our illustration be, of Homer undertaking to compose the Iliad. If he had not believed himself to be a man of very superior powers to the majority of the persons around him, he would most assuredly never have attempted it. What an enterprise! To describe in twenty-four books, and sixteen thousand verses, the perpetual warfare and contention of two great nations, all Greece being armed for the attack, and all the western division of Asia Minor for the defence: the war carried on by two vast confederacies, under numerous chiefs, all sovereign and essentially independent of each other. To conceive the various characters of the different leaders, and their mutual rivalship. To engage all heaven, such as it was then understood, as well as what was most respectable on earth, in the struggle. To form the idea, through twenty-four books, of varying the incidents perpetually, and keeping alive the attention of the reader or hearer without satiety or weariness. For this purpose, and to answer to his conception of a great poem, Homer appears to have thought it necessary that the action should be one; and he therefore took the incidental quarrel of Achilles and the commander in chief, the resentment of Achilles, and his consequent defection from the cause, till, by the death of Patroclus, and then of Hector, all traces of the misunderstanding first, and then of its consequences, should be fully obliterated. There is further an essential difference between the undertaking of Columbus and that of Homer. Once fairly engaged, there was for Columbus no drawing back. Being already at sea on the great Atlantic Ocean, he could not retrace his steps. Even when he had presented his project to the sovereigns of Spain, and they had accepted it, and still more when the ships were engaged, and the crews mustered, he must go forward, or submit to indelible disgrace. It is not so in writing a poem. The author of the latter may stop whenever he pleases. Of consequence, during every day of its execution, he requires a fresh stimulus. He must look back on the past, and forward on what is to come, and feel that he has considerable reason to be satisfied. The great naval discoverer may have his intervals of misgiving and discouragement, and may, as Pope expresses it, "wish that any one would hang him." He goes forward; for he has no longer the liberty to choose. But the author of a mighty poem is not in the same manner entangled, and therefore to a great degree returns to his work each day, "screwing his courage to the sticking-place." He must feel the same fortitude and elasticity, and be as entirely the same man of heroic energy, as when he first arrived at the resolution to engage. How much then of self-complacency and self-confidence do his undertaking and performance imply!