Art reveals the transitory as an absolute; & as the transitory existence is perpetuated through the centuries, art too, through the centuries, must perpetuate this never-to-be-finished revelation. Thus, the constructive activities of man tale a valid meaning only when they are assumed as a movement toward freedom; & reciprocally, one sees that such a movement is concrete: discoveries, inventions, industries, culture, painting, & books people the world concretely & open possibilities to men.