“What exactly did these words, of both the Declaration of Independence and the Gettysburg Address, mean? They meant that there was no difference, between one human being, and another human being, that made one the master and the other the servant. As Jefferson once put it, some men are not born with saddles on their backs, nor are others born booted and spurred to ride them. That a man or woman rides a horse corresponds with the difference in their natures. No injustice is done to the horse! That an ox should pull a plow, while a man walks behind, is according to nature. In these cases, servitude follows from the laws of nature. But these same laws of nature tell us that when a human being is subjected to other human beings as if he were a horse or an ox, the laws of nature are violated. All human beings are accordingly equal in their right not to be enslaved, and in their right to be in secure possession of their lives, liberties, and property. To this end they have a right to be governed only by laws to which they have consented.”

" Speech on the Scaffold http://www.bartleby.com/268/3/15.html", 1685

Source: First Things, Last Things (1971), p. 65

Letter to Roger C. Weightman http://www.rjgeib.com/thoughts/jefferson/jefferson.html, declining to attend July 4th ceremonies in Washington D.C. celebrating the 50th anniversary of Independence, because of his health. This was Jefferson's last letter http://www.rjgeib.com/thoughts/jefferson/jefferson.html. (24 June 1826)
1820s
Context: All eyes are opened, or opening, to the rights of man. The general spread of the light of science has already laid open to every view the palpable truth, that the mass of mankind has not been born with saddles on their backs, nor a favored few booted and spurred, ready to ride them legitimately, by the grace of God. These are grounds of hope for others. For ourselves, let the annual return of this day forever refresh our recollections of these rights, and an undiminished devotion to them.

2000s, The Central Idea (2006)
Context: The equality of mankind is best understood in light of a two-fold inequality. The first is the inequality of mankind and of the subhuman classes of living beings that comprise the order of nature. Dogs and horses, for example, are naturally subservient to human beings. But no human being is naturally subservient to another human being. No human being has a right to rule another without the other's consent. The second is the inequality of man and God. As God's creatures, we owe unconditional obedience to His will. By that very fact however we do not owe such obedience to anyone else. Legitimate political authority—the right of one human being to require obedience of another human being—arises only from consent. The fundamental act of consent is, as the 1780 Massachusetts Bill of Rights states, "a social compact by which the whole people covenants with each citizen and each citizen with the whole people that all shall be governed by certain laws for the common good." The "certain laws for the common good" have no other purpose but to preserve and protect the rights that each citizen possesses prior to government, rights with which he or she has been "endowed by their Creator." The rights that governments exist to secure are not the gift of government. They originate in God.

Burro Genius: A Memoir (2004)

Sixth Lincoln-Douglas debate https://cwcrossroads.wordpress.com/2011/01/18/race-and-slavery-north-and-south-some-logical-fallacies/#comment-47553, (13 October 1860), Quincy, Illinois
1860s
Context: You know that in his Charleston speech, an extract from which he has read, he declared that the negro belongs to an inferior race; is physically inferior to the white man, and should always be kept in an inferior position. I will now read to you what he said at Chicago on that point. In concluding his speech at that place, he remarked, 'My friends, I have detained you about as long as I desire to do, and I have only to say let us discard all this quibbling about this man and the other man-this race and that race, and the other race being inferior, and therefore they must be placed in an inferior position, discarding our standard that we have left us. Let us discard all these things, and unite as one people throughout this land until we shall once more stand up declaring that all men are created equal'. Thus you see, that when addressing the Chicago Abolitionists he declared that all distinctions of race must be discarded and blotted out, because the negro stood on an equal footing with the white man; that if one man said the Declaration of Independence did not mean a negro when it declared all men created equal, that another man would say that it did not mean another man; and hence we ought to discard all difference between the negro race and all other races, and declare them all created equal.

Source: The Princess and Curdie

The Philosophical Emperor, a Political Experiment, or, The Progress of a False Position: (1841)

"Wild Horses" (co-written with Keith Richards), on Sticky Fingers (1971).
Lyrics
Context: I know I've dreamed you, a sin and a lie
I have my freedom but I don't have much time
Faith has been broken, tears must be cried
Let's do some living, after we die
Wild horses couldn't drag me away
Wild, wild horses, we'll ride them some day…