Thomas Jefferson – Second Inaugural Address – March 4, 1805

Excerpt

But the endeavors to enlighten them on the fate which awaits their present course of life, to induce them to exercise their reason, follow its dictates, and change their pursuits with the change of circumstances have powerful obstacles to encounter; they are combated by the habits of their bodies, prejudices of their minds, ignorance, pride, and the influence of interested and crafty individuals among them who feel themselves something in the present order of things and fear to become nothing in any other. These persons inculcate a sanctimonious reverence for the customs of their ancestors; that whatsoever they did must be done through all time; that reason is a false guide, and to advance under its counsel in their physical, moral, or political condition is perilous innovation; that their duty is to remain as their Creator made them, ignorance being safety and knowledge full of danger; in short, my friends, among them also is seen the action and counteraction of good sense and of bigotry; they too have their antiphilosophists who find an interest in keeping things in their present state, who dread reformation, and exert all their faculties to maintain the ascendancy of habit over the duty of improving our reason and obeying its mandates.