"It seems to be the determination of some of the jealous members of the ****** (R. *** Soc. y), not to suffer the Institution to sink, but on the / Other hand to master up a force, & support it with al…"

"I am not surprised that men are not grateful to me; but I wonder that they are not grateful to God for the good which He has made me the instrument of conveying to my fellow creatures."

"The most beautiful flowers are often found in the most obscure places."

"I have often reflected, with a degree of wonder, on the slow progress of human knowledge."

"The cow-pox protects the human constitution from the infection of smallpox."