In 1487 alone, two hundred heretics had-in one of the greatest euphemisms in the history of language-"relaxed," that is, burned at the stake. Dogs of God, Columbus, the Inquisition, and the Defeat of the Moors - James Reston Jr.
Heretics are the only [bitter] remedy against the entropy of human thought.("Literature, Revolution, and Entropy") - Yevgeny Zamyatin
If we have no heretics we must invent them, for heresy is essential to health and growth. - Yevgeny Zamyatin
ILLUMINATI, n. A sect of Spanish heretics of the latter part of the sixteenth century; so called because they were light weights -- _cunctationes illuminati_. - Ambrose Bierce