If we would have a just idea of any man's character, we should view it from as many points, and under as many aspects, as we can. The side-lights thrown by the lesser occupations of a life are often very strong, and bring out its less obvious parts into startling prominence. Much especially is to be learned of character by taking into consideration the employment of times of leisure or relaxation; the occupation of such hours being due almost solely to the natural bent of the individual, without the interfering action of necessity or expediency. Most men, perhaps especially eminent men, have a "hobby," — some absorbing object, the pursuit of which forms the most natural avocation of their mind, and to which they turn with the certainty of at least satisfaction, if not of exquisite pleasure. The man who follows any branch of natural science in this way is almost always especially happy in its prosecution; and his mental powers are refreshed and invigorated for the more serious and engrossing if less congenial occupation of his life.
7 December 2016
Everybody Needs a Hobby
Henry Trimen, "His Botanical Studies," John Stuart Mill: His Life and Works (Boston: James R. Osgood, 1873), p. 43: