“I believe that every man who has ever been earnest to preserve his higher or poetic faculties in the best condition has been particularly inclined to abstain from animal food, and from much food of any kind.”

“I am a man who, from his youth upwards, has been filled with a profound conviction that the easiest way of life is the best.”

“What virtue is there in a man who demonstrates goodness because he has been bred to it? It is his habit from youth. But a man who has known unkindness and want, for him to be kind and charitable to those who have been the cause of his misfortunes, that is a virtuous man.”

“I'm like a starving man who has been given food. Maybe he's cold, and his clothes are torn, and he's ashamed, but he's not unhappy.”

“Logic was, formerly, the art of drawing inferences; it has now become the art of abstaining from inferences, since it has appeared that the inferences we feel naturally inclined to make are hardly ever valid.”

“Growing corn, which from a biological perspective had always been a process of capturing sunlight to turn into food, has in no small measure become a process of converting fossil fuels into food.”