"So long as the old Liberal freedoms survive, you can engage in propaganda for whatever excites you. Such activities suffice to satisfy most men's combative instincts. Creative impulses which are not combative, such as those of the artist and the writer, cannot be satisfied in this way, and for them the only solution, in a socialist State, is liberty to employ your leisure as you like. This is the only solution, because such activities are sometimes extremely valuable, but the community has no way of judging, in a given case, whether the artist's or writer's work is worthless or shows immortal genius. Such activities, therefore, must not be systematized or controlled. Some part of life — perhaps the most important part— must be left to the spontaneous action of individual impulse, for where all is system there will be mental and spiritual death."