The precise reason why abstinence from animal food will be the first act ... of a moral life is admirably explained in the book, The Ethics of Diet [by Howard Williams]; and not by one man only, but by all mankind in the persons of its best representatives during all the conscious life of humanity. ... the moral progress of humanity - which is the foundation of every other kind of progress - is always slow; but ... the sign of true, not casual, progress is its uninterruptedness and its continual acceleration. And the progress of vegetarianism is of this kind. That progress, is expressed both in the words of the writers cited in the above-mentioned book and in the actual life of mankind, which from many causes is involuntarily passing metre and more from carnivorous habits to vegetable food, and is also deliberately following the same path in a movement which shows evident strength, and which is growing larger and larger - viz., vegetarianism.