"I would give a thousand secrets of nature upon which I stumbled by accident, in exchange for this one which I extracted from nature, in spite of all the miracles and dangers which I faced."

"I loved that pigeon as a man loves a woman, and she loved me. As long as I had her, there was a purpose to my life."

"I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success."

"Our entire biological system, the brain, and the Earth itself, work on the same frequencies."

"Though free to think and act, we are held together, like the stars in the firmament, with ties inseparable. These ties cannot be seen, but we can feel them. I cut myself in the finger, and it pains me…"