Edward Jenner — "I have often been accused of being too sanguine in my expectations; but time wil…"

"The most important discoveries have often been made by accident."

"The joy I felt at the prospect before me of being the instrument destined to take away from the world one of its greatest calamities was so excessive that I sometimes found myself in a kind of reverie…"

"It is a great satisfaction to me to reflect, that I have been instrumental in saving so many lives."

"This Inquiry will lay all those troublesome ghosts which have so long haunted the Metropolis with their ox-faces, & dismal hootings against Vaccination. However, tis all for the best – you may depend …"

"I've dispatc'd, my dear madam, this scrap of a letter, To say that Miss — — is very much better. A Regular Doctor no longer she lacks, And therefore I've sent her a couple of Quacks."