“Laws assure animals of protection – formally, officially, set down in black and white. But in the long run, the best protection is the human heart.”

"Runaround" in Astounding Science Fiction (March 1942); later published in I, Robot (1950)
The Three Laws of Robotics (1942)

1870s, Speech in the House of Representatives (1871)
Context: I can hardly believe that any person can be found who will not admit that every one of these provisions is just. They are all asserted, in some form or other, in our Declaration or organic law. But the Constitution limits only the action of Congress, and is not a limitation on the States. This amendment supplies that defect, and allows Congress to correct the unjust legislation of the States, so far that the law which operates upon one man shall operate equally upon all. Whatever law punishes a white man for a crime shall punish the black man precisely in the same way and to the same degree. Whatever law protects the white man shall afford equal protection to the black man. Whatever means of redress is afforded to one shall be afforded to all. Whatever law allows the white man to testify in court shall allow the man of color to do the same. These are great advantages over their present codes. Now different degrees of punishment are inflicted, not on account of the magnitude of the crime, but according to the color of the skin. Now color disqualifies a man from testifying in courts or being tried in the same way as white men.

Source: Law and Authority (1886), IV
Context: The millions of laws which exist for the regulation of humanity appear upon investigation to be divided into three principal categories: protection of property, protection of persons, protection of government. And by analyzing each of these three categories, we arrive at the same logical and necessary conclusion: the uselessness and hurtfulness of law.

Source: "The Black Manifesto" (1969), p. 118

Species Conservation in Managed Habitats: The Myth of Pristine Nature (2016), p. 51

Letter to Jacob De La Motta (August 1820), Manuscript Division, Papers of James Madison http://www.jewishvirtuallibrary.org/jsource/loc/madison.html
1820s
Context: Equal laws protecting equal rights, are found as they ought to be presumed, the best guarantee of loyalty, and love of country; as well as best calculated to cherish that mutual respect and good will among citizens of every religious denomination which are necessary to social harmony and most favorable to the advancement of truth.
Context: Among the features peculiar to the political system of the United States is the perfect equality of rights which it secures to every religious sect. And it is particularly pleasing to observe in the good citizenship of such as have been most distrusted and oppressed elsewhere, a happy illustration of the safety and success of this experiment of a just and benignant policy. Equal laws protecting equal rights, are found as they ought to be presumed, the best guarantee of loyalty, and love of country; as well as best calculated to cherish that mutual respect and good will among citizens of every religious denomination which are necessary to social harmony and most favorable to the advancement of truth.

Speech to the Fiji Law Society, 2 July 2005.

1840s, The Conservative (1841)
Context: It will never make any difference to a hero what the laws are. His greatness will shine and accomplish itself unto the end, whether they second him or not. If he have earned his bread by drudgery, and in the narrow and crooked ways which were all an evil law had left him, he will make it at least honorable by his expenditure. Of the past he will take no heed; for its wrongs he will not hold himself responsible: he will say, All the meanness of my progenitors shall not bereave me of the power to make this hour and company fair and fortunate. Whatsoever streams of power and commodity flow to me, shall of me acquire healing virtue, and become fountains of safety. Cannot I too descend a Redeemer into nature? Whosoever hereafter shall name my name, shall not record a malefactor, but a benefactor in the earth. If there be power in good intention, in fidelity, and in toil, the north wind shall be purer, the stars in heaven shall glow with a kindlier beam, that I have lived. I am primarily engaged to myself to be a public servant of all the gods, to demonstrate to all men that there is intelligence and good will at the heart of things, and ever higher and yet higher leadings. These are my engagements; how can your law further or hinder me in what I shall do to men? On the other hand, these dispositions establish their relations to me. Wherever there is worth, I shall be greeted. Wherever there are men, are the objects of my study and love. Sooner of later all men will be my friends, and will testify in all methods the energy of their regard. I cannot thank your law for my protection. I protect it. It is not in its power to protect me. It is my business to make myself revered. I depend on my honor, my labor, and my dispositions for my place in the affections of mankind, and not on any conventions or parchments of yours.

Cold Colors (p. 239)
Smoke and Mirrors (1998)