” … he will be regarded as a benefactor of his race who shall teach man to confine himself to a more innocent and wholesome diet. Whatever my own practice may be, I have no doubt that it is part of the destiny of the human race, in its gradual improvement, to leave off eating animals, “
Henry David Thoreau
in Walden (1854)
‘One farmer says to me, “You cannot live on vegetable food solely, for it furnishes nothing to make bones with;” and so he religiously devotes a part of his day to supplying his system with the raw materials of bones; walking all the while he talks behind his oxen, which, with vegetable-made bones, jerk him and his lumbering plough along in spite of every obstacle.’
Henry David Thoreau
from Walden in the chapter named ‘Economy’
Violet's Vegan Comics 