Internalism

Internalism is the view in Epistemology that everything necessary to provide justification for a belief is immediately available in a person's consciousness without having to resort to external factors, or at least that these things are cognitively accessible to a person. Therefore, all knowledge-yielding conditions are within the psychological states of those who gain knowledge. It is a type of Psychologism (any position in which psychology plays a central role in grounding or explaining some other, non-psychological type of fact or law).