"The existence of a medium, after all, is its absolute justification, if as so many seem to think, it needs one and all comparison of potentialities is useless and irrelevant. Whether a water-color is inferior to an oil, or whether a drawing, an etching, or a photograph is not as important as either, is inconsequent. To have to despise something in order to respect something else is a sign of impotence. [emphasis added] Let us rather accept joyously and with gratitude everything through which the spirit of man seeks to an ever fuller and more intense self-realization."