"The human body is a machine, but it is also a living soul."

"Very many maintain that all we know is still infinitely less than all that still remains unknown; nor do philosophers pin their faith to others' precepts in such wise that they lose their liberty, and…"

"I profess both to learn and to teach anatomy not from books but from dissections; not from the tenets of philosophers but from the fabric of nature."

"The blood is the very bond of the soul, and the soul itself."

"It is a thing alike wonderful and incredible, to observe how the blood, from the very beginning of its motion, is distributed from the heart through the whole body, and then returns to the heart again…"