Robert H. Jackson, Federal Trade Commission v. Ruberoid Company…
“ No doubt it is administratively convenient to blanket an industry under a comprehensive prohibition in bulk-an undiscriminating prohibition of discrimination. But this not only fails to give the precision and concreteness of legal duties to the abstract policies of the Act, it really promulgates an inaccurate partial paraphrase of its indeterminate generalities. Instead of completing the legislation by an order which will clarify the petitioner's duty, it confounds confusion by literally ordering it to cease what the statute permits it to do. ”
