“A man with delicately-strung nerves often says and does things which often lead us to think more meanly of him than he deserves. It is his great misfortune constantly to present himself at his worst. On the other hand, a man provided with nerves vigorously constituted, is provided also with a constitutional health and a hardihood wich express themselves brightly in his manners, and which lead to a mistaken impression that his nature is what it appears to be on the surface. Having good health, he has good spirits. Having good spirits, he wins as an agreeable companion on the persons with whom he comes in contact - although he may be hiding all the while, under an outer covering which is physically wholesome, an inner nature which is morally diseased.”