Smith Thompson,
Groves v. Slaughter — Opinion of the Court
“ If there was no provision in the constitution of the United States giving to congress the power to regulate commerce, and an act was passed by a state prohibiting the introduction of slaves for sale, would it not be an interference with commerce between the states.The powers conferred on congress, are duties; and they are to be exercised for the good of the states. What is the foundation of the right to slaves? There is no law declaring slaves property any more than land. Slaves are property by the term 'slaves.' The master has a right to their services and labor. ”
