But now let us consider the case of the witty expression of a thought that is not without value in itself and that comes to the surface in the course of the association of mental processes. In order that this thought may become a witticism, it is of course necessary that it make a choice among the possible forms of expression in order to find the exact form that will bring along the gain in word-pleasure. We know from self-observation that this choice is not made by conscious attention; but the selection will certainly be better if the occupation energy of the foreconscious thought is lowered to the unconscious. For in the unconscious, as we have learnt from the dream-work, the paths of association emanating from a word are treated on a par with associations from objects. The occupation energy from the unconscious presents by far the more favorable conditions for the selection of the expression. Moreover, we may assume without going farther that the possible expression which contains the gain in word-pleasure exerts a lowering effect on the still fluctuating self-command of the foreconscious, similar to that exerted in the first case by the unconscious tendency. As an explanation for the simpler case of the jest we may imagine that an ever watchful intention of attaining the gain in word-pleasure seizes the opportunity offered in the foreconscious of again drawing the investing energy down into the unconscious, according to the familiar scheme. I earnestly wish that it were possible for me on the one hand to present one decisive point in my conception of wit more clearly, and on the other hand to fortify it with compelling arguments. But as a matter of fact it is not a question here of two failures, but of one and the same failure. I can give no clearer exposition because I have no further testimony on behalf of my conception. The latter has developed as the result of my study of the technique and of comparison with dream-work, and indeed from this one side only. I now find that the dream-work is altogether excellently adapted to the peculiarities of wit. This conception is now concluded; if the conclusion leads us not to a familiar province, but rather to one that is strange and novel to our modes of thought, the conclusion is called a “hypothesis,” and the relation of the hypothesis to the material from which it is drawn is justly not accepted as “proof.” The hypothesis is admitted as “proved” only if it can be reached by other ways and if it can be shown to be the junction point for other associations. But such proof, in view of the fact that our knowledge of unconscious processes has hardly begun, cannot be had. Realizing then that we are on soil still virgin, we shall be content to project from our viewpoint of observation one narrow slender plank into the unexplored region.