Nor indeed even in this latter case is a really accurate judgment possible. Men are born into the world with both wills and passions of varying strength, though in mature life the strength or weakness of each is largely due to their own conduct. With different characters the same temptation, operating under the same external circumstances, has enormously different strength, and very few men can fully realise the strength of a passion which they have never themselves experienced. To repeat an illustration I have already used, how difficult is it for a constitutionally sober man to form in his own mind an adequate conception of the force of the temptation of drink to a dipsomaniac, or for a passionless man to conceive rightly the temptations of a profoundly sensual nature! I have spoken in a former chapter of the force with which bodily conditions act upon happiness. Their influence on morals is not less terrible. There are diseases well known to physicians which make the most placid temper habitually irritable; give a morbid turn to the healthiest disposition; fill the purest mind with unholy thoughts. There are others which destroy the force of the strongest will and take from character all balance and self-control.[23] It often happens that we have long been blaming a man for manifest faults of character till at last suicide, or the disclosure of some grave bodily or mental disease which has long been working unperceived, explains his faults and turns our blame into pity. In madness the whole moral character is sometimes reversed, and tendencies which have been in sane life dormant or repressed become suddenly supreme. In such cases we all acknowledge that there is no moral responsibility, but madness, with its illusions and irresistible impulses, and idiocy with its complete suspension of the will and of the judgment, are neither of them, as lawyers would pretend, clearly defined states, marked out by sharp and well-cut boundaries, wholly distinct from sanity. There are incipient stages; there are gradual approximations; there are twilight states between sanity and insanity which are clearly recognised not only by experts but by all sagacious men of the world. There are many who are not sufficiently mad to be shut up, or to be deprived of the management of their properties, or to be exempted from punishment if they have committed a crime, but who, in the common expressive phrase, 'are not all there'--whose eccentricities, illusions and caprices are on the verge of madness, whose judgments are hopelessly disordered; whose wills, though not completely atrophied, are manifestly diseased. In questions of property, in questions of crime, in questions of family arrangements, such persons cause the gravest perplexity, nor will any wise man judge them by the same moral standard as well-balanced and well-developed natures.