It is not amiss, however, to remind the reader of this: that in all free arts something of a compulsory character is still required, or, as it is called, a mechanism, without which the spirit, which in art must be free, and which alone gives life to the work, would be bodyless and In my part of the country, if you set the common man a problem like that of Columbus and his egg, he says, 'There is no art in that, it is only science': ie you can do it if you know how; and he says just the same of all the would be arts of jugglers.