Rather in time of war the citizen must be more alert to the preservation of his right to control his government. He must be most watchful of the encroachment of the military upon the civil power. He must beware of those precedents in support of arbitrary action by administrative officials, which excused on the plea of necessity in wartime, become the fixed rule when the necessity has passed and normal conditions have been restored.

Free Speech in Wartime (October 6, 1917)