“We see how it might be possible to embark upon a theory and history of contractual sacrifice. Now this sacrifice presupposes institutions of the type we are describing, and conversely it realizes them to the full, for the gods who give and repay are there to give something great in exchange for something small. Perhaps then it is not the result of pure chance that the two solemn formulas of contract, the Latin do ut des and the Sanskrit dadami se, dehi me have come down to us through religious texts.”