William O. Douglas,
Interstate Commerce Commission v…
“ It is a commonplace of administrative law that the evaluation to be given criterial findings, if adequately supported, is left essentially to the administrative agency charged with primary responsibility for interpreting the will of Congress. The extent to which this is so will be misconceived if drawn from abstract conceptions of 'fact,' 'law,' or 'law-application.' For one thing, the permissible scope of administrative discretion may vary from section to section within a single statute. ”
