Quote by Edward Jenner
"Adventure into the unknown realms of disease requires both bravery and preparation."
More from Edward Jenner
"Vaccination is the medical discovery which has saved more lives than any other single medical intervention in the history of medicine."
"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."
"I hope that some transmissible disease of a milder nature will spread through the population and prepare them for the true thing when it comes."
"Truly the cow-pox secures the constitution from that dreadful scourge the small-pox."