If the agent is careless, and does not take a receipt for the money which he gave the merchant, he can not consider the unreceipted money as his own.
Besides, I have pointed out what are the laws of nature; and, with no other principle upon which to found my reasonings except the infinite perfection of God, I endeavoured to demonstrate all those about which there could be any room for doubt, and to prove that they are such, that even if God had created more worlds, there could have been none in which these laws were not observed.