Edward Jenner — "I have often reflected, with a degree of wonder, on the slow progress of human k…"

"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 …"

"It is a fortunate circumstance, that the Cow Pox is not infectious; for if it were, it would be a source of great alarm."

"Altho' I should be happy to shield it myself from the speckled Monster, yet I would advise you not long to risk my coming to Town. I will just add that I consider the Vaccine Lancet in the hand of [Dr…"

"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."

"You see by the papers how I'm annoyed by a set of blockheads who write about the imperfection of the cowpox, as a vaccine, without any knowledge scarcely of its phenomena."