I look upon those who would deny others the right to urge and argue their position, however irksome and pernicious they may seem, as intellectual and moral cowards.

There is nothing that dies so hard and rallies so often as intolerance.

Peace purchased at the cost of any part of our national integrity is fit only for slaves, and even when purchased for such a price it is a delusion, for it cannot last.

No more fatuous chimera has ever infested the brain than that you can control opinions by law or direct belief by statute, and no more pernicious sentiment ever tormented the heart than the barbarous desire to do so. The field of inquiry should remain open, and the right of debate must be regarded as a sacred right.