"This is not what I thought physics was about when I started out: I learned that the idea is to explain nature in terms of clearly understood mathematical laws; but perhaps comparisons are the best we can hope for."

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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.

— Paul Strand