Health and disease affects the mind as much as body. Virtue, goodness, etc., are only the healthy or normal exercise of our various faculties, while depravity and sin are only the sickly exercise of these same organs. Holiness and moral excellence, as well as badness, depend far less upon the relative SIZE of the phrenological organs, than upon their DIRECTION or tone and character, and this depends upon the STATE OF THE BODY. Or thus; a healthy physiology tends to produce a healthy action of the phrenological organs, which is virtue and happiness; while an unhealthy physiology produces that sickly exercise of the mental faculties, especially of the animal propensities, which constitutes depravity and produces misery. Hence those phrenologists who look exclusively to the predominant SIZE of the animal organs, for vicious manifestations, and regard their average size as indicative of virtue, have this great lesson to learn, that health of body produces health of mind and purity of feelings, while all forms of bodily disease, in the very nature of things, tend to corrupt the feelings and deprave the soul. While, therefore, phrenologists should scrutinize the size of organs closely, they should observe the STATE OF HEALTH much more minutely, for most of their errors are explainable on this ground: that the organs described produced vicious inclinations, not because they were so large but because they were physically SICK, and hence take on a morally DEFORMED mode of action. Phrenologists, look ye well to these points, more fully explained in our other phrenological works. SECTION II. PHRENOLOGICAL CONDITIONS AS INDICATING CHARACTER. 21.--DEFINITION AND PROOF. PHRENOLOGY points out those relations established by nature between given developments and conditions of BRAIN and corresponding manifestations of MIND. Its simple yet comprehensive definition is this: every faculty of the mind is manifested by means of particular portions of the BRAIN called its organs, the size of which, other things being equal, is proportionate to its power of function. For example: it teaches that parental love is manifested by one organ, or portion of the brain; appetite by another, reason by a third, etc., which are large the stronger these corresponding mental powers.