Ogden v. Saunders — Opinion of the Court
“ As, in a state of nature, the natural obligation of a contract consists in the right and potential capacity of the individual to take, or enforce the delivery of the thing due to him by the contract, or its equivalent; so, in the social state, the obligation of a contract consists in the efficacy of the civil law, which attaches to the contract, and enforces its performance, or gives an equivalent in lieu of performance. ”
