When no information can be secured about the customer, the only sound basis on which to proceed is to assume that he or she is sincere, honest, truthful, and willing and anxious to pay the charges, once convinced they are correct. To put it differently and perhaps more clearly, people are honest and want to discharge their obligations. -Principle 10, How to Win Friends and Influence People, p.217 Continue reading Assume that he or she is sincere, honest, truthful.