If the slave-power could now in good faith stand where the fathers stood, with the added lights of experience shining upon the question, asking sympathy and co-operation in a system of emancipation, pleading that it was unfair to ask them to make greater sacrifices than other men are willing to make, allowing that it was a common evil, the cost and trouble of whose removal should be cheerfully borne by all, or if the laws of any slave state looked towards the gradual relief of the difficulty, there is not an honest man in the North or the South whose heart would not tremble with joy as he contemplated the destiny of his country.

The Present Aspect of the Slavery Question (1859)