"It is not, that I am an enemy to the practice of inoculation; on the contrary, I am a warm friend to it, and have been so for many years. But I am convinced, that the present mode of conducting it is …"

"The true philosopher is he who is always learning, and who is never ashamed to confess his ignorance."

"The human mind is capable of great things; but it is also capable of great errors."

"The Cow Pox, when it has once taken place, is a security against the Small Pox for life."

"Did you make a convert of the obstinate antivaxinist at Lello?"