It has been already urged that both knowledge and perception--which, though not identical with knowledge, is presupposed by it--are essentially of _reality_. Now, in the _first_ place, it is thereby implied that the relation between the mind and reality in knowledge or in perception is essentially direct, i. e. that there is no _tertium quid_ in the form of an 'idea' or a 'representation' between us as perceiving or knowing and what we perceive or know. In other words, it is implied that Locke's view is wrong in principle, and, in fact, the contrary of the truth. In the _second_ place, it is implied that while the whole fact of perception includes the reality perceived and the whole fact of knowledge includes the reality known, since both perception and knowledge are 'of', and therefore inseparable from a reality, yet the reality perceived or known is essentially distinct from, and cannot be stated in terms of, the perception or the knowledge. Just as neither perception nor knowledge can be stated in terms of the reality perceived or known from which they are distinguished, so the reality perceived or known cannot be stated in terms of the perception or the knowledge. In other words, the terms 'perception' and 'knowledge' ought to stand for the activities of perceiving and knowing respectively, and not for the reality perceived or known. Similarly, the terms 'idea' and 'representation'--the latter of which has been used as a synonym for Kant's _Vorstellung_--ought to stand not for something thought of or represented, but for the act of thinking or representing.