Charles grew ill at Salisbury, and was taken home for three months. "I began," he says, "to get annoyed with _ennui_, which did not improve my health, for I was always most exceedingly miserable if unemployed, though I had an excessive aversion to work unless forced to it. It happened that, a little before this time, my father had for a short time exchanged botany for entomology, a fit which only lasted just long enough to induce him to purchase some books on the latter subject, after which he threw it up; principally, I believe, from a dislike to kill the insects. I did not like this _department_ of the subject either....
"Collecting insects was just the sort of desultory occupation which suited me at that time, as it gave sufficient employment to my mind and body, was full of variety, and to see a store continually increasing gratified what in the cant phrase of the phrenologist is termed the 'accumulative propensity.' I soon began to know what was rare, and to appreciate specimens by this test. In the evenings I used to look over 'Donovan's Insects,' a work in which a great number of the British species are well given in colored plates, but which has no scientific merit. This was a royal road of arriving at the names, and required no study, but mere looking at pictures. At first I confined my attention to the Lepidoptera (butterflies, moths, etc.), as the most beautiful, but soon became fond of watching the singular habits of the aquatic insects, and used to sit whole mornings by a pond, feeding them with flies, and catching them if I could.
"I had no companion to share this hobby with me, no one to encourage me in following it up, yet my love for it continued always to increase, and it afforded a most varied source of amusement.... Instead of sympathy, I received from almost every one else beyond my home either ridicule, or hints that the pursuits of other boys were more manly.... The disrepute in which my hobby was held had a considerable effect upon my character, for I was very sensitive of the good opinions of others, and therefore followed it up almost by stealth; so that, although I never confessed to myself that I was wrong, but always reasoned myself into a belief that the generality of people were too stupid to comprehend the interest of such pursuits; yet, I got too much in the habit of avoiding being seen, as if I was ashamed of what I did."