Abstract
The Brentano-Meinong concept of self-presentation is discussed and defined. A property P is said to be self-presenting, i f and only if, P is necessarily such that, for every x, i f x has P and considers the question whether he has P, then it is evident to x that he has P. A definition of the purely psychological is propojsed. Then the following material epistemic principle is discussed and defended: A property P is self-presenting to a person x, i f and only if, P is entailed by a purely psychological property of x.