Robert G. Ingersoll, 1833 - 1899
In my judgment, every human being should take a road of his own. Every mind should be true to itself -- should think, investigate and conclude for itself. This is a duty alike incumbent upon pauper and prince. Every soul should repel dictation and tyranny no matter from what source they come -- from earth or heaven from men or gods. Besides, every traveler upon this vast plain should give to every other traveler his best idea as to the road that should be taken. Each is entitled to the honest opinion of all. And there is but one way to get an honest opinion upon any subject whatever. The person giving the opinion must be free from fear. The merchant must not fear to lose his custom, the doctor his practice, nor the preacher his pulpit. There can he no advance without liberty. Suppression of honest inquiry is retrogression, and must end in intellectual night.