Henry James Sumner Maine,
Ancient Law
(1861)
“ In implied contracts, acts and circumstances are the symbols of the same ingredients which are symbolised, in express contracts, by words; and whether a man employs one set of symbols or the other must be a matter of indifference so far as concerns the theory of agreement. But a Quasi-Contract is not a contract at all. The commonest sample of the class is the relation subsisting between two persons one of whom has paid money to the other through mistake. ”
