It is true that the subliminal in man is the largest part of his nature and has in it the secret of the unseeen dynamisms which explain his surface activities. But the lower vital subconscious which is all that this psycho-analysis of Freud seems to know, - and of that it knows only a few ill-lit corners, - is no more than a restricted and very inferior portion of the subliminal whole... to begin by opening up the lower subconscious, risking to raise up all that is foul or obscure in it, is to go out of one's way to invite trouble.
As in all infant sciences, the universal habit of the human mind - to take a partial or local truth, generalise it unduly and try to explain a whole field of nature in its narrow terms - runs riot here (in psychoanalysis). Moreover, the exaggeration of the importance of suppressed sexual complexes is a dangerous falsehood.
The Unknown is not the Unknowable; it need not remain the unknown for us, unless we choose ignorance or persist in our first limitations. For to all things that are not unknowable, all things in the universe, there correspond in that universe faculties which can take cognisance of them, and in man, the microcosm, these faculties are always existant and at a certain stage capable of development. We may choose not to develop them; where they are partially developed, we may discourage and impose on them a kind of atrophy. But, fundamentally all possible knowledge is knowledge within the power of humanity. And since in man there is the inalienable impulse of Nature towards self-realisation, no struggle of the intellect to limit the action of our capacities within a determined area can for ever prevail.