In a tone of patronizing liberality, Mr. Slidell gave assurance that the new confederacy would recognize the rights of the inhabitants of the valley of the Mississippi and its tributaries to free navigation, and would guarantee to them "a free interchange of agricultural production without impost, and the free transit from foreign countries of every species of merchandise, subjected only to such regulations as may be necessary for a protection of the revenue system which we may establish." Had Mr. Slidell been less inspired by insolence, and more largely endowed with wisdom, he would have remembered that when the Union contained but six millions of people, they were willing to fight any one of three great European powers for freedom of access to the sea for the inhabitants of the valley of the Mississippi, and that it was from the first a physical impossibility to close it or in any way restrict it against the rights of the North-West. The people of that section, even without the prestige of the national flag, were immeasurably stronger than the people of the South-West, and were, unaided, fully competent to fight their way to the ocean over any obstacles which the powers behind Mr. Slidell could interpose. In the mere matching of local strength, it was sheer folly for the States of the lower Mississippi to attempt to control the mouth of that river.
Mr. Judah P. Benjamin spoke in a tone of moderation as contrasted with the offensive dictation of Mr. Slidell. He devoted himself mainly to answering an argument which came instinctively to every man's mind, and which bore with particular severity upon the action of Louisiana. Mr. Benjamin brought his eminent legal ability to the discussion, but failed even to satisfy himself. The State of Louisiana was formed from territory which had been bought and paid for by the United States out of the common treasury of the whole people. Whatever specious plea might be made for the independent and separate sovereignty of the old thirteen States, the argument could not apply to Louisiana. No one could maintain that Louisiana had ever enjoyed a separate sovereignty of any kind, nominal or real. She had been originally owned by France, had been sold to Spain, had been sold back again to France, and had been bought by the United States. These sales had been made without protest from any one, and the title conferred at each transfer was undisputed, the sovereignty of the purchasing power undeniable.