If men were angels, no government would be necessary. If angels were to govern men, neither external nor internal controls on government would be nec… - James Madison

You must first enable the government to control the governed; and in the next place, oblige it to control itself.

In framing a government which is to be administered by men over men, the great difficulty lies in this: you must first enable the government to control the governed; and in the next place oblige it to control itself.

The United States, having been the first to abolish within the extent of their authority the transportation of the natives of Africa into slavery, by prohibiting the introduction of slaves and by punishing their citizens participating in the traffic, can not but be gratified at the progress made by concurrent efforts of other nations toward a general suppression of so great an evil. They must feel at the same time the greater solicitude to give the fullest efficacy to their own regulations. With that view, the interposition of Congress appears to be required by the violations and evasions which it is suggested are chargeable on unworthy citizens who mingle in the slave trade under foreign flags and with foreign ports, and by collusive importations of slaves into the United States through adjoining ports and territories. I present the subject to Congress with a full assurance of their disposition to apply all the remedy which can be afforded by an amendment of the law. The regulations which were intended to guard against abuses of a kindred character in the trade between the several States ought also to be rendered more effectual for their humane object.

Where we see the same faults followed regularly by the same misfortunes, we may reasonably think that if we could have known the first we might have avoided the others.

American citizens are instrumental in carrying on a traffic in enslaved Africans, equally in violation of the laws of humanity and in defiance of those of their own country. The same just and benevolent motives which produced interdiction in force against the criminal conduct will doubtless be felt by Congress in devising further means of suppressing the evil.