It is impossible to tell, in a great many cases, whether a comparison which suddenly suggests itself is a new conception or a recollection. I told you the other day that I never wrote a line of verse that seemed to me comparatively good, but it appeared old at once, and often as if it had been borrowed. But I confess I never suspected the above comparison of being old, except from the fact of its obviousness. It is proper, however, that I proceed by a formal instrument to relinquish all claim to any property in an idea given to the world at about the time when I had just joined the class in which Master Thomas Moore was then a somewhat advanced scholar. I, therefore, in full possession of my native honesty, but knowing the liability of all men to be elected to public office, and for that reason feeling uncertain how soon I may be in danger of losing it, do hereby renounce all claim to being considered the _first_ person who gave utterance to a certain simile or comparison referred to in the accompanying documents, and relating to the pupil of the eye on the one part and the mind of the bigot on the other. I hereby relinquish all glory and profit, and especially all claims to letters from autograph collectors, founded upon my supposed property in the above comparison,—knowing well, that, according to the laws of literature, they who speak first hold the fee of the thing said. I do also agree that all Editors of Cyclopedias and Biographical Dictionaries, all Publishers of Reviews and Papers, and all Critics writing therein, shall be at liberty to retract or qualify any opinion predicated on the supposition that I was the sole and undisputed author of the above comparison. But, inasmuch as I do affirm that the comparison aforesaid was uttered by me in the firm belief that it was new and wholly my own, and as I have good reason to think that I had never seen or heard it when first expressed by me, and as it is well known that different persons may independently utter the same idea,—as is evinced by that familiar line from Donatus,— “Pereant illi qui ante nos nostra dixerunt,”— now, therefore, I do request by this instrument that all well-disposed persons will abstain from asserting or implying that I am open to any accusation whatsoever touching the said comparison, and, if they have so asserted or implied, that they will have the manliness forthwith to retract the same assertion or insinuation. * * * * *