“The greatest test of courage is to bear defeat without losing heart.”

“Any doctrine that will not bear investigation is not a fit tenant for the mind of an honest man. Any doctrine that will not bear investigation is not a fit tenant for the mind of an honest man. Any man who is afraid to have his doctrine investigated is not only a coward but a hypocrite.”

“The glory of science is, that it is freeing the soul -- breaking the mental manacles -- getting the brain out of bondage -- giving courage to thought -- filling the world with mercy, justice, and joy.”

“It is a thousand times better to have common sense without education than to have education without common sense.”

“Liberty a word without which all other words are vain.”

“Music expresses feeling and thought, without language; it was below and before speech, and it is above and beyond all words. ”

“What light is to the eyes – what air is to the lungs – what love is to the heart, liberty is to the soul of man.”