If sensations or states of consciousness possess degrees of clearness, it seems to follow that we may scrutinize them for the purpose of discovering characteristics that were present though scarcely perceived, in much the same way that the polishing of old furniture brings out the grain in the wood. But such a parallel, I submit, is plain nonsense. The supposition that consciousness is something that in due time and with good fortune may attain consciousness is too absurd for discussion, even though it is a supposition that plays a considerable role in present-day psychology. The purpose of the discussion, up to this point, has not been to deny the validity of the distinction between focus and margin, but to insist upon the necessity of reconsidering the meaning of this distinction, if we are to attain to a workable definition of consciousness and a fruitful or even intelligible conception of the problem of psychology. I have endeavored to show, in the first place, that the doctrine of focus and margin involves the _raison d'etre_ of psychology. Apart from this doctrine we have no task or problem that psychology can claim as its distinctive possession. The analysis of what is in the focus of consciousness is adequately provided for in the other sciences; it is only with the introduction of what is called the margin that an enterprise of a different kind becomes necessary. But, secondly, this distinction of focus and margin cannot be drawn on the basis of the experienced contrast between clearness and obscureness. The very fact that anything is experienced as obscure means that it is an object of attention, or, in other words, that it is in the focus of consciousness and not in the margin. The comparison of focus and margin with direct and indirect vision is misleading, because it suggests that experiences are marginal in proportion as they are felt as obscure. And, thirdly, if we undertake to distinguish between focus and margin on the basis of a difference in clearness or vividness of which no note is taken at the time, we encounter the difficulty that experience or consciousness, taken abstractly, does not admit of such variations in degree, and so this criterion likewise goes by the board.