"My Dear Sir:--Yours of the 13th was received some days ago. The fight must go on. The cause of civil liberty must not be surrendered at the end of one or even one hundred defeats. Douglas had the ingenuity to be supported in the late contest both as the best means to break down and to uphold the slave interest. No ingenuity can keep these antagonistic elements in harmony long. Another explosion will soon come. "Yours truly, "A. Lincoln." To another friend* on the same day he writes: * Dr. Henry. "I am glad I made the late race. It gave me a hearing on the great and durable questions of the age which I could have had in no other way; and though I now sink out of view and shall be forgotten, I believe I have made some marks which will tell for the cause of liberty long after I am gone." Before passing to later events in Mr. Lincoln's life it is proper to include in this chapter, as a specimen of his oratory at this time, his eloquent reference to the Declaration of Independence found in a speech delivered at Beardstown, August 12, and not at Lewiston five days later, as many biographers have it. Aside from its concise reasoning, the sublime thought it suggests entitles it to rank beside that great masterpiece, his Gettysburg address. After alluding to the suppression by the Fathers of the Republic of the slave trade, he says: "These by their representatives in old Independence Hall said to the whole race of men: 'We hold these truths to be self-evident: that all men are created equal; that they are endowed by their Creator with certain inalienable rights; that among these are life, liberty, and the pursuit of happiness.' This was their majestic interpretation of the economy of the universe. This was their lofty, and wise, and noble understanding of the justice of the Creator to his creatures--yes, gentlemen, to all his creatures, to the whole great family of man. In their enlightened belief, nothing stamped with the divine image and likeness was sent into the world to be trodden on and degraded and imbruted by its fellows. They grasped not only the whole race of man then living, but they reached forward and seized upon the farthest posterity. They erected a beacon to guide their children, and their children's children, and the countless myriads who should inhabit the earth in other ages. Wise statesmen as they were, they knew the tendency of prosperity to breed tyrants, and so they established these great self-evident truths, that when in the distant future some man, some faction, some interest, should set up the doctrine that none but rich men, none but white men, or none but Anglo-Saxon white men were entitled to life, liberty, and the pursuit of happiness, their posterity might look up again to the Declaration of Independence and take courage to renew the battle which their fathers began, so that truth and justice and mercy and all the humane and Christian virtues might not be extinguished from the land;