“Science advances one funeral at a time.”

“The advancement of science and the diffusion of information [is] the best aliment to true liberty.”

“Every great advance in science has issued from a new audacity of imagination. ”

“The ‘stream’ we call science always flows forward; sometimes reactionary beavers block its flow, but the stream is never defeated by this; it accumulates, gathers strength; its waters get over the barrage and continue on their course. The advancement of science is the advancement of God, for science is nothing but human intelligence, and human intelligence is the most valuable treasure God has bequeathed us.”

“The world changes materially. Science makes advances in technology and understanding. But the world of humanity doesn't change.”

“Freedom of thought is best promoted by the gradual illumination of men’s minds which follows from the advance of science.”