"It is not, that I am an enemy to the practice of inoculation; on the contrary, I am a warm friend to it, and have been so for many years. But I am convinced, that the present mode of conducting it is …"

"The deviation of man from the state in which he was originally placed by nature seems to have proved to him a prolific source of diseases."

"The human mind is capable of great things; but it is also capable of great errors."

"I have never been a lover of controversy; but when truth is concerned, I am not afraid to speak out."

"The most beautiful part of the human frame is the eye; and yet it is the most liable to disease."