Horace Mann: “This is one of the reasons why slave labor is so much less efficient than free labor.”

But such largesses to slavery as kings could not afford to give, and the robbery of an entire race of all its rights,--yes, and with authority, too, to make us help commit the robbery,--these are “factitious and imaginary” causes of…

The man of independent circumstances has this liberty; and no man’s circumstances, not even the poorest and the humblest, should be so dependent as to take it away.

Men of Massachusetts! moral and religious men! lovers of freedom and of your country, were you prepared for this?

A southern slave stands higher, politically, than a northern laborer, if the latter must vote as his employer dictates.