“The existing confusion of conflicting creeds and sects is fitly represented by the term "Babylon," which prophecy (Revelation 14:8) applies to the world-loving churches of the last days.”

Source: The Story of My Life (1903), Ch. 21
Context: Ruth is so loyal and gentle-hearted, we cannot help loving her, as she stands with the reapers amid the waving corn. Her beautiful, unselfish spirit shines out like a bright star in the night of a dark and cruel age. Love like Ruth's, love which can rise above conflicting creeds and deep-seated racial prejudices, is hard to find in all the world.

A Plaine Discovery of the Whole Revelation of St. John (1593), The First and Introductory Treatise

Optimism (1903)
Context: The idea of brotherhood redawns upon the world with a broader significance than the narrow association of members in a sect or creed; and thinkers of great soul like Lessing challenge the world to say which is more godlike, the hatred and tooth-and-nail grapple of conflicting religions, or sweet accord and mutual helpfulness. Ancient prejudice of man against his brother-man wavers and retreats before the radiance of a more generous sentiment, which will not sacrifice men to forms, or rob them of the comfort and strength they find in their own beliefs. The heresy of one age becomes the orthodoxy of the next. Mere tolerance has given place to a sentiment of brotherhood between sincere men of all denominations.

Medical Ministry (1932), p. 131

The Truth (1896)

Isis Unveiled (1877), Vol. I Preface

Heretics and Heresies (1874)
Context: Every church pretends that it has a revelation from God, and that this revelation must be given to the people through the church; that the church acts through its priests, and that ordinary mortals must be content with a revelation — not from God — but from the church. Had the people submitted to this preposterous claim, of course there could have been but one church, and that church never could have advanced. It might have retrograded, because it is not necessary to think or investigate in order to forget. Without heresy there could have been no progress.

Source: The Postmodern Condition: A Report on Knowledge (1977), p.7

Robert G. Ingersoll, a declaration in discussion with Rev. Henry M. Field on Faith and Agnosticism, quoted in Vol. VI of Farrell's edition of his works, also in Hoyt's New Cyclopedia Of Practical Quotations (1922) edited by Kate Louise Roberts, p. 663.