we cannot, and if, for all we understand, the two are at one and harmonious—then our conclusion is proved fully. For we have a general assurance that reality has a certain nature, and, on the other side, against that assurance we have to set nothing, nothing other than our ignorance. But an assurance, against which there is nothing to be set, must surely be accepted. And I will begin first with Error.
Error is without any question a dangerous subject, and the chief difficulty is as follows. We cannot, on the one hand, accept anything between non-existence and reality, while, on the other hand, error obstinately refuses to be either. It persistently attempts to maintain a third position, which appears nowhere to exist, and yet somehow is occupied. In false appearance there is something attributed to the real which does not belong to it. But if the appearance is not real, then it is not false appearance, because it is nothing. On the other hand, if it is false, it must therefore be true reality, for it is something which is. And this dilemma at first sight seems insoluble. Or, to put it otherwise, an appearance, which is, must fall somewhere. But error, because it is false, cannot belong to the Absolute; and, again, it cannot appertain to the finite subject, because that, with all its contents, cannot fall outside the Absolute; at least, if it did, it would be nothing. And so error has no home, it has no place in existence; and yet, for all that, it exists. And for this reason it has occasioned much doubt and difficulty.
For Psychology and for Logic the problem is much easier. Error can be identified with wrong inference, and can be compared on one side with a typical model; while, on the other side, we can show by what steps it originates. But these enquiries, however interesting, would not much assist us, and we must endeavour here to face the problem