"I shall not, I presume, be thought presumptuous in declaring, that the Cow Pox is the most efficacious, and the most safe, of all the methods that have been yet discovered, for eradicating the Small P…"

"I shall endeavor still further to prosecute this inquiry, an inquiry I trust not merely speculative, but of sufficient moment to inspire the pleasing hope of its becoming essentially beneficial to man…"

"It is the lot of man to suffer; but it is also his lot to alleviate the sufferings of others."

"The path of discovery is not a smooth one; it is often beset with difficulties and discouragements."

"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."