“[For the Romans] an essential element of the Law of Nature is the equality of man, specifically, equality before the law, and the principle of human rights, including the rights to property, which antedated the state, and thus are independent of it. Fifteen hundred years later these ideas would furnish the philosophical cornerstone of Western democracy.”

"Equality: the Unknown Ideal" (2001)

1800s, First Inaugural Address (1801)
Context: All, too, will bear in mind this sacred principle, that though the will of the majority is in all cases to prevail, that will to be rightful must be reasonable; that the minority possess their equal rights, which equal law must protect, and to violate would be oppression. Let us, then, fellow-citizens, unite with one heart and one mind. Let us restore to social intercourse that harmony and affection without which liberty and even life itself are but dreary things.

Source: Marvi Sirmed https://blogs.tribune.com.pk/story/3270/where-did-the-blasphemy-law-come-from/

1960s, First court statement (1962)
Context: In its proper meaning equality before the law means the right to participate in the making of the laws by which one is governed, a constitution which guarantees democratic rights to all sections of the population, the right to approach the court for protection or relief in the case of the violation of rights guaranteed in the constitution, and the right to take part in the administration of justice as judges, magistrates, attorneys-general, law advisers and similar positions.
In the absence of these safeguards the phrase 'equality before the law', in so far as it is intended to apply to us, is meaningless and misleading. All the rights and privileges to which I have referred are monopolized by whites, and we enjoy none of them. The white man makes all the laws, he drags us before his courts and accuses us, and he sits in judgement over us.

L'État comprime et la loi triche
L'impôt saigne le malheureux
Nul devoir ne s'impose au riche
Le droit du pauvre est un mot creux
C'est assez, languir en tutelle
L'égalité veut d'autres lois
Pas de droits sans devoirs dit-elle
Égaux, pas de devoirs sans droits
The Internationale (1864)

2000s, God Bless America (2008), The American Proposition

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.

A Preliminary Discourse on the Study of Natural Philosophy (1831)
Context: We must never forget that it is principles, not phenomena, — laws not insulated independent facts, — which are the objects of inquiry to the natural philosopher. As truth is single, and consistent with itself, a principle may be as completely and as plainly elucidated by the most familiar and simple fact, as by the most imposing and uncommon phenomenon. The colours which glitter on a soapbubble are the immediate consequence of a principle the most important, from the variety of phenomena it explains, and the most beautiful, from its simplicity and compendious neatness, in the whole science of optics. If the nature of periodical colours can be made intelligible by the contemplation of such a trivial object, from that moment it becomes a noble instrument in the eye of correct judgment; and to blow a large, regular, and durable soap-bubble may become the serious and praise-worthy endeavour of a sage, while children stand round and scoff, or children of a larger growth hold up their hands in astonishment at such waste of time and trouble. To the natural philosopher there is no natural object unimportant or trifling. From the least of nature's works he may learn the greatest lessons. The fall of an apple to the ground may raise his thoughts to the laws which govern the revolutions of the planets in their orbits; or the situation of a pebble may afford him evidence of the state of the globe he inhabits, myriads of ages ago, before his species became its denizens.
And this, is, in fact, one of the great sources of delight which the study of natural science imparts to its votaries. A mind which has once imbibed a taste for scientific inquiry, and has learnt the habit of applying its principles readily to the cases which occur, has within itself an inexhaustible source of pure and exciting contemplations. One would think that Shakspeare had such a mind in view when he describes a contemplative man as finding