39. How does one cough in his sleep?
40. Give illustrations of the unconscious action of the brain.
41. Is chewing tobacco more injurious than smoking?
42. Ought a man to retire from business while his faculties are still unimpaired?
43. Which is the more exhaustive to the brain, worry or severe mental application?
44. Is it a blessing to be placed beyond the necessity for work?
45. Show how anger, hate, and the other degrading passions are destructive to the brain. [Footnote: "One of the surest means for keeping the body and mind in perfect health consists in learning to hold the passions in subservience to the reasoning faculties. This rule applies to every passion. Man, distinguished from all other animals by the peculiarity that his reason is placed above his passions to be the director of his will, can protect himself from every mere animal degradation resulting from passionate excitement. The education of the man should be directed not to suppress such passions as are ennobling, but to bring all under governance, and specially to subdue those most destructive passions, anger, hate, and fear.">[
46. Are not amusements, to repair the waste of the nervous energy, especially needed by persons whose life is one of care and toil?
47. Is not severe mental labor incompatible with a rapidly growing body?
48. How shall we induce the system to perform all its functions regularly