There is no oath which seems to me so sacred as that sworn by the all-divine love I bear you. — By this love, then, and by the God who reigns in Heaven, I swear to you that my soul is incapable of dishonor — that, with the exception of occasional follies and excesses which I bitterly lament, but to which I have been driven by intolerable sorrow, and which are hourly committed by others without attracting any notice whatever — I can call to mind no act of my life which would bring a blush to my cheek — or to yours. If I have erred at all, in this regard, it has been on the side of what the world would call a Quixotic sense of the honorable — of the chivalrous.

"Letter to Mrs. Whitman" (1848-10-18).