A man can suffocate on courtesy. Autore: Henry David Thoreau Copy Quote More from Henry David Thoreau “He who sits still in a house all the time may be the greatest vagrant of all; b…” “Most of the luxuries, and many of the so called comforts of life, are not only …” “The forcible writer stands bodily behind his words with his experiences. He doe…” “We are underbred and low-lived and illiterate; and in this respect I confess I …”