"The heart by its pulsific action moves, perfects, and cherishes the blood, and preserves it from corruption and coagulation."

"The wise man will not be content with the knowledge of things as they are, but will seek to know how they came to be so."

"I have not been afraid to publish my thoughts, knowing that truth, though for a time suppressed, will at last prevail."

"The blood in the animal body is impelled in a circle, and is in a state of ceaseless motion."

"It is only when we have satisfied ourselves by careful dissection that we can truly understand the nature of things."