It is rather in his general direction than in any specific act that a man has most control. We certainly have not the amount of free will which we like to believe we have. For example, the reader of this chapter may have returned home to-night and have said, “I will not have a meal to-night, it is too hot.” What are the factors (or determinants, as they are called) in this case? Perhaps external heat, producing langour by various physiological processes, combined with lack of appetite, in its turn produced by several causes, and added to this, depression, produced by a bad business deal, and in its turn the result of many other determinants outside the reader’s control. There is no desire to eat, and these various determinants, added together, prove stronger than the habit of eating the evening meal. Having, however, read this chapter as far as this point, the reader desiring to disprove my unpleasant suggestion, immediately says, “Ah! I will prove that I have free will. I will eat my meal in spite of not wanting it.” Alas! this does not _prove_ free will, new determinants have merely been added on the other side, and desire to prove strength of mind has now out-weighed accumulated efforts which prevented you from eating. Since it has been shown that a man’s control is constantly being limited by other determinants, it follows that the criminal whose environment and determinants, conscious and unconscious, have been manufactured for him from evil sources, yet who, on the whole, is progressing upwards in spite of these, may be forming a far better character than the arch-bishop whose environment from the beginning has been such as never to give him criminal characteristics, yet whose growth has been, on the whole, towards a more selfish position, even though this be not noticeable to the eyes of others. _Now many of the determinants forming our characters lie in the unconscious. They are unknown to us and only the results of their activities are visible. Herein lies the difficulty of controlling ourselves. How can we efficiently control that of which we do not know the existence? Herein, also, lies the value of psycho-analysis, for it brings many of these determinants to light, and we are thus able to control them consciously._ Only a part of all this can be accomplished by such self-analysis as may be indicated in this book. Yet even so, a much greater degree of self-control may be obtained. §2 Let us now consider briefly why persons who have not previously been irritable, should suddenly become irritable; who have not previously been hysterical, should suddenly become hysterical; who have not previously been in the habit of weeping, should at some time after reaching adult life, revert to that infantile habit.