I have been frequently asked, says this great man, what precautions
I use to preserve myself from infections in the prisons and
hospitals I visit. I here answer, next to the free goodness and
mercy of the Author of my being, temperance and cleanliness are my
preservatives. Trusting in Divine Providence, and believing myself
in the way of my duty, I visit the most noxious cells, and while
thus employed, "I fear no evil."