Daniel Webster, Speech delivered in the Senate of the United States (March 7, 1850):
It is in the nature of man, manifested in his whole history, that religious disputes are apt to become warm in proportion to the strength of the convictions which men entertain of the magnitude of the questions at issue. In all such disputes, there will sometimes be found men with whom every thing is absolute; absolutely wrong, or absolutely right. They see the right clearly; they think others ought so to see it, and they are disposed to establish a broad line of distinction between what is right and what is wrong. They are not seldom willing to establish that line upon their own convictions of truth or justice; and are ready to mark and guard it by placing along it a series of dogmas, as lines of boundary on the earth's surface are marked by posts and stones. There are men who, with clear perception, as they think, of their own duty, do not see how too eager a pursuit of one duty may involve them in the violation of others, or how too warm an embracement of one truth may lead to a disregard of other truths equally important. As I heard it stated strongly, not many days ago, these persons are disposed to mount upon some particular duty, as upon a war-horse, and to drive furiously on and upon and over all other duties that may stand in the way. There are men who, in reference to disputes of that sort, are of the opinion that human duties may be ascertained with the exactness of mathematics. They deal with morals as with mathematics; and they think what is right may be distinguished from what is wrong with the precision of an algebraic equation. They have, therefore, none too much charity towards others who differ from them. They are apt, too, to think that nothing is good but what is perfect, and that there are no compromises or modifications to be made in consideration of difference of opinion or in deference to other men's judgment. If their perspicacious vision enables them to detect a spot on the face of the sun, they think that a good reason why the sun should be struck down from heaven. They prefer the chance of running into utter darkness to living in heavenly light, if that heavenly light be not absolutely without any imperfection.