… is from page 502 of Richard Epstein’s important 1992 volume, Forbidden Grounds: The Case Against Employment Discrimination Laws:
Yet we should always beware of claims of benevolence made in the political context. Even if certain practices are introduced from benevolent motives, the forces of individual self-interest and political action are never far from the scene, and these can easily become dominant no matter how lofty and disinterested the rationale of some defenders of the new practice.