  A general argument for accessibility internalism has been proposed on behalf of the internalist, and this reconstructed argument has the merit of being extendable to mentalism (Goldman 1999; note that Goldman is well-known for defending externalism and is thus no friend of internalism).  Internalists often adopt a specific deontological position, namely a “belief-guidance” position, or a guidance deontological concept (GD concept). The idea behind GD is that one ought to guide the formation of one's beliefs by the amount and strength of the evidence one has on hand, and this certainly has a deontological ring to it. This guidance theme is slightly different from what we have identified as the deontological concept of justification, for that is a thesis about what ‘being epistemically justified’ means. The GD conception, on the other hand, is a thesis about how a person ought to go about forming her beliefs. With this distinction drawn, the general argument for internalism is straightforward: