"Whatever the future may have in store for us, one thing is certain... Human thought will never go backward. When a great truth once gets abroad in the world, no power on earth can imprison it, or prescribe its limits, or suppress it. It is bound to go on till it becomes the thought of the world... Now that it has got fairly fixed in the minds of the few, it is bound to become fixed in the minds of the many, and be supported at last by a great cloud of witnesses, which no man can number and no power can withstand."