Edward Jenner — "It is a great satisfaction to me to reflect, that I have been instrumental in sa…"

"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 human mind is a wonderful machine; but it is also a very delicate one."

"I have often found that the best way to learn is to teach."

"The deviation of the Cow Pox from its true character appears to be very frequent; and when it does appear, it is, as far as I have seen, uniformly in the following manner: The vesicle, instead of bein…"

"I have often been surprised at the credulity of mankind; but I have also been surprised at their obstinacy."