From note 16, Chapter III: American Scripture, Making the Declaration of Independence, by Pauline Maier
“With regard to the values and educational methods of the eighteenth century, note that Jefferson himself kept a ‘Commonplace Book.’ Its pedagogical purpose was suggested by Jefferson’s teacher, the Rev. James Maury, who instructed his own son to ‘reflect, and remark on, and digest what you read,’ and to dwell on any remarkable beauties of diction, justness or sublimity of sentiment, or masterly strokes of true wit which may occur in the course of your reading.”
From note 97, Chapter IV: American Scripture, Making the Declaration of Independence, by Pauline Maier
“At Chicago, Lincoln . . . said that the argument that the principles of the Declaration of Independence do not apply to blacks was identical to ‘the 
arguments that kings have made for enslaving the people in all ages of the world. You will find that all the arguments in favor of king-craft were of this class.’ Douglas’s argument was like that of ‘the same old serpent’ who says ‘you work and I eat, you toil and I will enjoy the fruits of it. Turn it whatever way you will—whether it come from the mouth of a King, an excuse for enslaving people of his country, or from the mouth of men of one race as a reason for enslaving the men of another race, it all the same old serpent . . . .”
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