“We must recognize that it is a cardinal sin against democracy to support a man for public office because he belongs to a given creed or to oppose him because he belongs to a given creed. It is just as evil as to draw the line between class and class, between occupation and occupation in political life. No man who tries to draw either line is a good American. True Americanism demands that we judge each man on his conduct, that we so judge him in private life and that we so judge him in public life.”

1910s, Address to the Knights of Columbus (1915)

Source: The Way of All Flesh (1903), Ch. 26

1950s, Address at the Philadelphia Convention Hall (1956)

1910s, Address to the Knights of Columbus (1915)
Context: For thirty-five years I have been more or less actively engaged in public life, in the performance of my political duties, now in a public position, now in a private position. I have fought with all the fervor I possessed for the various causes in which with all my heart I believed; and in every fight I thus made I have had with me and against me Catholics, Protestants, and Jews. There have been times when I have had to make the fight for or against some man of each creed on ground of plain public morality, unconnected with questions of public policy. There were other times when I have made such a fight for or against a given man, not on grounds of public morality, for he may have been morally a good man, but on account of his attitude on questions of public policy, of governmental principle. In both cases, I have always found myself 4 fighting beside, and fighting against, men of every creed. The one sure way to have secured the defeat of every good principle worth fighting for would have been to have permitted the fight to be changed into one along sectarian lines and inspired by the spirit of sectarian bitterness, either for the purpose of putting into public life or of keeping out of public life the believers in any given creed. Such conduct represents an assault upon Americanism. The man guilty of it is not a good American. I hold that in this country there must be complete severance of Church and State; that public moneys shall not be used for the purpose of advancing any particular creed; and therefore that the public schools shall be non-sectarian. As a necessary corollary to this, not only the pupils but the members of the teaching force and the school officials of all kinds must be treated exactly on a par, no matter what their creed; and there must be no more discrimination against Jew or Catholic or Protestant than discrimination in favor of Jew, Catholic or Protestant. Whoever makes such discrimination is an enemy of the public schools.

Source: 1910s, Theodore Roosevelt — An Autobiography (1913), Ch. VI : The New York Police

1900s, A Square Deal (1903)
Context: It is not enough to be well-meaning and kindly, but weak; neither is it enough to be strong, unless morality and decency go hand in hand with strength. We must possess the qualities which make us do our duty in our homes and among our neighbors, and in addition we must possess the qualities which are indispensable to the make-up of every great and masterful nation -- the qualities of courage and hardihood, of individual initiative and yet of power to combine for a common end, and above all, the resolute determination to permit no man and no set of men to sunder us one from the other by lines of caste or creed or section. We must act upon the motto of all for each and each for all. There must be ever present in our minds the fundamental truth that in a republic such as ours the only safety is to stand neither for nor against any man because he is rich or because he is poor, because he is engaged in one occupation or another, because he works with his brains or because he works with his hands. We must treat each man on his worth and merits as a man. We must see that each is given a square deal, because he is entitled to no more and should receive no less.

Sādhanā : The Realisation of Life http://www.spiritualbee.com/spiritual-book-by-tagore/ (1916)
Context: We never can have a true view of man unless we have a love for him. Civilisation must be judged and prized, not by the amount of power it has developed, but by how much it has evolved and given expression to, by its laws and institutions, the love of humanity. The first question and the last which it has to answer is, Whether and how far it recognises man more as a spirit than a machine? Whenever some ancient civilisation fell into decay and died, it was owing to causes which produced callousness of heart and led to the cheapening of man's worth; when either the state or some powerful group of men began to look upon the people as a mere instrument of their power; when, by compelling weaker races to slavery and trying to keep them down by every means, man struck at the foundation of his greatness, his own love of freedom and fair-play. Civilisation can never sustain itself upon cannibalism of any form. For that by which alone man is true can only be nourished by love and justice.

The Tragic Sense of Life (1913), X : Religion, the Mythology of the Beyond and the Apocatastasis

Source: "Toward a universal law of generalization for psychological science," 1987, p. 1322