The nature of the service is not changed and the principle still holds when the deposit is made with a person who gives ample pledges for its full return; the principle still holds when the deposit is made in a farm and secured there by mortgage, making it safer than in the iron vault.
The true ethical principle, equity between man and man, requires that the holder of the property of another shall be compensated by the owner of the property for his services in caring for and preserving it. The amount of compensation depends on the difficult or favorable conditions attending its care. These conditions greatly vary, perhaps in no two cases are exactly alike, and so there can be no fixed price or rate at which one will receive and care for the property of another. The extreme limit of liberality permitted is that he may care for the property of another for nothing. He is not permitted to pay a price for the privilege. The revealed divine law, true ethics and equity and duty of self preservation forbid him. Perfect preservation of any amount, large or small, for any time, long or short, whatever the incidental advantages to the borrower, is the highest compensation a borrower is permitted to give for any loan. The demand for more than this by the owner is to be resisted as unjust and oppressive.
An express company receives a package of money for which it receipts and becomes responsible and agrees to deliver to the owner at some distant point. For this service it receives compensation in accordance with the amount of service. If the conditions are dangerous and the distance great the charge is large. If the conditions are very favorable and safe the charges are small.
If the amount of service is reduced to the minimum, in rare cases, no charge may be made. But that a price should be paid for the privilege of caring for and conveying it, is inconsistent with the management of an honest business. The purpose would be either to rob the owner of his wealth or to rob the employes of their services.