“Parties in religion and politics make sufficient discoveries concerning each other, to give a sober man a proper caution against them all.”

Original works of Rabindranath Vol. 24 page 375, Vishwa Bharti; 1982.

Source: Fahrenheit 451

Federalist No. 10
1780s, Federalist Papers (1787–1788)
Context: A zeal for different opinions concerning religion, concerning government, and many other points, as well of speculation as of practice; an attachment to different leaders ambitiously contending for pre-eminence and power; or to persons of other descriptions whose fortunes have been interesting to the human passions, have, in turn, divided mankind into parties, inflamed them with mutual animosity, and rendered them much more disposed to vex and oppress each other than to co-operate for their common good. So strong is this propensity of mankind to fall into mutual animosities, that where no substantial occasion presents itself, the most frivolous and fanciful distinctions have been sufficient to kindle their unfriendly passions and excite their most violent conflicts. But the most common and durable source of factions has been the various and unequal distribution of property. Those who hold, and those who are without property, have ever formed distinct interests in society.

Preface.
A History of Science Vol.2 Hellenistic Science and Culture in the Last Three Centuries B.C. (1959)

Gantenbein (1964)

Source: Utopia (1516), Ch. 9 : Of the Religions of the Utopians
Context: Utopus having understood that before his coming among them the old inhabitants had been engaged in great quarrels concerning religion, by which they were so divided among themselves, that he found it an easy thing to conquer them, since, instead of uniting their forces against him, every different party in religion fought by themselves. After he had subdued them he made a law that every man might be of what religion he pleased, and might endeavour to draw others to it by the force of argument and by amicable and modest ways, but without bitterness against those of other opinions; but that he ought to use no other force but that of persuasion, and was neither to mix with it reproaches nor violence; and such as did otherwise were to be condemned to banishment or slavery.
This law was made by Utopus, not only for preserving the public peace, which he saw suffered much by daily contentions and irreconcilable heats, but because he thought the interest of religion itself required it. He judged it not fit to determine anything rashly; and seemed to doubt whether those different forms of religion might not all come from God, who might inspire man in a different manner, and be pleased with this variety; he therefore thought it indecent and foolish for any man to threaten and terrify another to make him believe what did not appear to him to be true. And supposing that only one religion was really true, and the rest false, he imagined that the native force of truth would at last break forth and shine bright, if supported only by the strength of argument, and attended to with a gentle and unprejudiced mind; while, on the other hand, if such debates were carried on with violence and tumults, as the most wicked are always the most obstinate, so the best and most holy religion might be choked with superstition, as corn is with briars and thorns; he therefore left men wholly to their liberty, that they might be free to believe as they should see cause.

Politics and the English Language (1946)

Source: Becoming Hitler: The Making of a Nazi (2017), p. 67

1960s, Freedom From The Known (1969)
Context: Violence is not merely killing another. It is violence when we use a sharp word, when we make a gesture to brush away a person, when we obey because there is fear. So violence isn't merely organized butchery in the name of God, in the name of society or country. Violence is much more subtle, much deeper, and we are inquiring into the very depths of violence.
When you call yourself an Indian or a Muslim or a Christian or a European, or anything else, you are being violent. Do you see why it is violent? Because you are separating yourself from the rest of mankind. When you separate yourself by belief, by nationality, by tradition, it breeds violence. So a man who is seeking to understand violence does not belong to any country, to any religion, to any political party or partial system; he is concerned with the total understanding of mankind.