To treat such a subject adequately in so small a space is obviously an impossibility. It must suffice to point out some of the chief causes of nerve-deterioration in present conditions, and the directions in which some improvement may gradually be wrought. The notion that evils can be remedied merely by passing laws is happily exploded. The law is now seen to be evidence and ratification of public opinion, and also a means of putting public opinion into action. Without this agreement on the part of the majority, the law becomes a dead letter, or is enforced only at the expense of dire catastrophe. There is, however, one justification of the efforts of those who wish to pass laws condemning certain abuses: they actually influence the public mind by means of the agitation raised for the purpose of attaining their ends; and so they create the opinion they would ratify. It also frequently happens that the agitators arouse disgust at their bigotry and fixity of idea, and so produce an opposite effect to that which they intended. Indeed, though devotion to a Cause is generally supposed to be an ennobling thing, it sometimes happens that it is a debasing and demoralising thing. For, instead of Self being sunk in the Cause, the Cause becomes with many a very excuse for selfishness. Persons considered high-principled, who would on no account misrepresent or defraud for their own confessed advantage, will nevertheless think almost any expedient justifiable in what they are pleased to term the public good. In this loss of moral sense and judgment we find the secret of much of the nerve-trouble of our day. The Self, having found a plausible excuse for its assertion, loses no time in becoming as suicidal in its tendencies as the uncontrolled Self usually is. Once committed to a course of action, that course of action must be adhered to throughout all opposition. Public support having in a weak moment been enlisted on some false pretext, our utmost efforts must thenceforth be used to prove this pretext true. Having gained a certain height, we dread to be cast from our elevation. Then come harassing worries, overwork, disappointment, and harmful excitement--all the sorrows, in fact, that tend to lower vitality and injure the nervous system.