“In inquiries respecting the laws of the world and the frame of things, the highest reason is always the truest.”

“It was the secrets of heaven and earth that I desired to learn; and whether it was the outward substance of things or the inner spirit of nature and the mysterious soul of man that occupied me, still my inquiries were directed to the metaphysical, or in its highest sense, the physical secrets of the world.”

“An individual who breaks a law that conscience tells him is unjust, and who willingly accepts the penalty of imprisonment in order to arouse the conscience of the community over its injustice, is in reality expressing the highest respect for the law”

“Our belief is not a belief. Our principles are not a faith. We do not rely soley upon science and reason, because these are necessary rather than sufficient factors, but we distrust anything that contradicts science or outrages reason. We may differ on many things, but what we respect is free inquiry, openmindedness, and the pursuit of ideas for their own sake.”

“It is certainly true that reason is the most important and the highest rank among all things and, in comparison with other things of this life, the best and something divine. It is the inventor and mentor of all the arts, medicines, laws, and of whatever wisdom, power, virtue, and glory men possess in this life.”

“That the truest experience of freedom: having the most important thing in the world without owning it.”