Edward Jenner , English scientist
said about Hope, Day, Practice, Will, World...
"I hope that some day the practice of producing cowpox in human beings will spread over the world - when that day comes, there will be no more smallpox."
- Edward Jenner
"I hope that some day the practice of producing cowpox in human beings will spread over the world - when that day comes, there will be no more smallpox."
- Edward Jenner
- Edward Jenner