“The certainties of one age are the problems of the next.”

Defence at his Heresy Trial

God and the Bible (1875)

Source: Frankenstein's Castle (1980), p. 89

Evil in Modern Thought: An alternative history of philosophy (2002)
Context: The picture of modern philosophy as centered in epistemology and driven by the desire to ground our representations is so tenacious that some philosophers are prepared to bite the bullet and declare the effort simply wasted. Rorty, for example, finds it easier to reject modern philosophy altogether than to reject the standard accounts of its history. His narrative is more polemical than most, but it's a polemical version of the story told in most philosophy departments in the second half of the twentieth century. The story is one of tortuously decreasing interest. Philosophy, like some people, was prepared to accept boredom in exchange for certainty as it grew to middle age.

Source: The Laundry Files, The Rhesus Chart (2014), Chapter 2, “Meet the Scrum” (p. 35)

Classic, Romantic, Modern (1961), ch. I: "Romanticism — Dead or Alive?"

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.