by John Marshall Harlan, Memphis v. Dow — Opinion of the Court
“ The right of subrogation is not founded on contract. It is a creature of equity; is enforced solely for the purpose of accomplishing the ends of substantial justice; and is independent of any contractual relations between the parties. All that the appellees can, in good conscience, demand, is reimbursement for their outlay in protecting the mortgaged property against the prior lien of the state. When relief to that extent is accorded, they will have no just ground to complain, especially as the debt held by the state was not the personal debt of the appellant. ”
