In seventeenth- and eighteenth-century France, race was already a weapon in the struggle between absolutism, aristocracy, and the middle class. The warfare spread to the arts and philosophy in the nineteenth century, by which time independent shoots in other cultures had also borne fruit, leaving the grand harvesting on a world-wide scale to our generation.
Viewed in the light of such facts, the race question appears a much bigger affair than a trumped-up excuse for local persecution. It becomes rather a mode of thought endemic in Western civilization. It defaces every type of mental activity — history, art, politics, science and social reform.
Race: A Study in Modern Superstition (1937)