“Well, that seems the thing to do, but I feel that I shouldn’t do it.” Very often he does what he feels instead of what seems to be the correct thing, and, moreover, the former is very frequently right. This is not surprising, seeing that the subconscious instinct in us is much more developed than the conscious faculty. But granting the subconscious its fullest degree of merit, we are forced to recognise its serious limitations in the mode of life (civilisation) with its ever changing environment which human progress demands. We must have a guiding principle without these limitations, to enable us to adapt ourselves much more quickly to the new environments which are inevitable in the progress of civilisation towards its legitimate goal. We must have something more reasoned and definite than that which subconscious direction offers, and so we come to the need of reasoned guidance. Up to the present neither of these forms of direction really reaches the mind as a definite tangible idea consciously conceived. This is because of the fundamental principles upon which subconscious direction has been built up, and in consequence of the undeveloped condition of conscious guidance. Furthermore, the subject has not yet made any serious attempt to analyse these two forces, of whose particular workings he is but dimly aware. The fundamental principle which we call evolution demands that every human being shall be enabled to make this analysis, so that he may differentiate between the impulses springing from his subconsciousness (instinct-inhibition) and the conceptions created in his reasoning conscious mind. The subject will thus cultivate the habit of distinguishing between reasoned and unreasoned actions and this will at once tend to the prevention of mental and physical delusions in all directions, notably in regard to his physical acts in old or new environments. (c) Whilst these delusions remain, the subject will continue to perform wrong or detrimental actions, for as long as his settled mental attitude towards such actions remains unchanged, he will believe that he is performing them in a correct manner. It is owing to this involuntary, and on his part unrecognised, misapprehension, that many malformations and inefficiencies become established, which sooner or later may lead to definite disease. The popular misconception of the subject’s responsibility in the matter leads him to be commonly pitied as for unavoidable defects, whereas it is of the first importance that he should realise the responsibility is his and his alone. He must be made aware that such defects arise from his own fault, and are the outcome of his ignorance or wilful neglect.