"I am not so mad, nor have I been so caught up in the opinion of others, as to believe that I have discovered anything so great as to be worthy of the name of a new opinion."

"It is not simply by chance that the heart is placed in the midst of the body, as if it were the sun of the microcosm."

"The examination of the bodies of animals has always been my delight."

"The physician's art is to imitate nature."

"Only by understanding the wisdom of natural foods and their effects on the body, shall we attain mastery of disease and pain, which shall enable us to relieve the burden of mankind."