"We may conclude, therefore, that, in order to establish laws for the regulation of property, we must be acquainted with the nature and situation of man; must reject appearances, which may be false, though specious; and must search for those rules, which are, on the whole, most useful and beneficial. Vulgar sense and slight exeprience are sufficient for this purpose; where men give not way to too selfish avidity, or too extensive enthusiasm." --David Hume, Enquiry Concerning the Principles of Morals, sect. III, pt. 2