"Let us, therefore, one and all, undismayed by sonorous warnings and dogmatic assertions, quietly and fearlessly ask our own consciences if the present system of diet is morally right and defensible ; and if the answer be, as I have attempted to prove it must be, in the negative, let us not shrink from the consequent duty of attempting a reform. The experience of those who have honestly and seriously made trial of Vegetarianism gives overwhelming testimony in its favour."
January 1, 1970
https://en.wikiquote.org/wiki/A_Plea_for_Vegetarianism_and_Other_Essays