"As this advice, if it ever see the light, will not do it till I am no more, it may be considered as issuing from the tomb, where truth alone can be respected, and the happiness of man alone consulted. It will be entitled therefore to whatever weight can be derived from good intentions, and from the experience of one who has served his country in various stations through a period of forty years; who espoused in his youth, and adhered through his life, to the cause of its liberty; and who has borne a part in most of the great transactions which will constitute epochs of its destiny."
"The advice nearest to my heart and deepest in my convictions is, "That the Union of the States be cherished and perpetuated. Let the open enemy to it be regarded as a Pandora with her box opened, and the disguised one as the Serpent creeping with his deadly wiles into Paradise."
Written by James Madison in 1834 and discovered sometime after his death (he died on June 28, 1836).