We shall at all times chance upon men of recondite acquirements, but whose qualifications, from the incommunicative and inactive habits of their owners, are as utterly useless to others as though the possessors had them not.
An artist has to train his responses more than other people do. He has to be as disciplined as a mathematician. Discipline is not a restriction but an aid to freedom. It prepares an artist to choose his own limitations.