"The book of nature is the only book that offers a wealth of content on every one of its pages."

"He who studies anatomy knows more than he who studies books."

"I began to think whether there might not be a motion as it were in a circle."

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

"The blood flows from the right ventricle through the lungs to the left auricle."