Our common sense folk theories are very largely objectivist folk theories. [...] The term “folk theory” should not be thought of as having negative connotations. Our folk theories are imaginative products of human mind that we absolutely could not do without. They allow us to function in everyday life, to go about our everyday business. In many vital domains-basic-level physical experience, communication, vision, etc.-they work most of the time. But our folk theories, as invaluable as they are, are neither indefinitely extendable nor applicable to every domain of experience. Their applicability is limited, and it is important to know what those limitations are. To a significant degree, they coincide with the limits of expert objectivist theories.
- Lakoff (1987), a pag.300-301