Nor were the poor negroes forgotten. Not a Quaker in Philadelphia, or Mr. Jefferson, of Virginia, ever asserted the rights of negroes in stronger terms. Young as I was, and ignorant as I was, I shuddered at the doctrine he taught; and I have all my lifetime shuddered, and still shudder, at the consequences that may be drawn from such premises. Shall we say, that the rights of masters and servants clash, and can be decided only by force? I adore the idea of gradual abolitions! But who shall decide how fast or how slowly these abolitions shall be made?

Letter to William Tudor (1818)