"Every relationship of man to the infinite is religion, namely of a man in the full abundance of his humanity. Whenever a mathematician calculates infinity, that, to be sure, is not religion. Infinity conceived in this abundance is the Godhead."
"He hath disgraced me, and hindered me half a million, laughed at my losses, mocked at my gains, scorned my nation, thwarted my bargains, cooled my friends, heated mine enemies; and what's his reason? I am a Jew."
"Hath not a Jew eyes? Hath not a Jew hands, organs, dimensions, senses, affections, passions; fed with the same food, hurt with the same weapons, subject to the same diseases, healed by the same means, warmed and cooled by the same winter and summer, as a Christian is?"
"If you prick us, do we not bleed? If you tickle us, do we not laugh? If you poison us, do we not die? And if you wrong us, shall we not revenge? If we are like you in the rest, we will resemble you in that. If a Jew wrong a Christian, what is his humility? Revenge. If a Christian wrong a Jew, what should his sufferance be by Christian example? Why, revenge. The villainy you teach me, I will execute, and it shall go hard but I will better the instruction."
"All the sweetness of religion is conveyed to children by the hands of storytellers and image-makers. Without their fictions the truths of religion would for the multitude be neither intelligible nor even apprehensible; and the prophets would prophesy and the philosophers celebrate in vain. And nothing stands between the people and the fictions except the silly falsehood that the fictions are literal truths, and that there is nothing in religion but fiction."
"Your honesty is not to be based either on religion or policy. Both your religion and policy must be based on it. Your honesty must be based, as the sun is, in vacant heaven; poised, as the lights in the firmament, which have rule over the day and over the night."
"A religious creed differs from a scientific theory in claiming to embody eternal and absolutely certain truth, whereas science is always tentative, expecting that modification in its present theories will sooner or later be found necessary, and aware that its method is one which is logically incapable of arriving at a complete and final demonstration."