Roger B. Taney,
Williams v. Gibbes (58 U.S. 239…
“ The assignment to the trustee for the benefit of their creditors was equally meritorious with Goodwin's assignment to Oliver. And if they had appeared as parties in the Maryland court, would they have been permitted to impeach the title of the trustee, who was then claiming it, and set up a right to the money in themselves, upon the ground that the contract of their respective intestates was fraudulent? Certainly, the principle is well established in chancery that a party cannot set aside a contract upon the ground that he himself was guilty of a fraud in making it. ”
