In our fondness for animal food we have gone so far that we do not enquire whether the animal whose flesh we eat was in good condition, nor what were its qualities; yet these act upon us. We see that plants which are supplied with certain substances acquire certain qualities. So it is with animals and fish; and so it is with us. One has only to look at the condition of the Brahmin, who eats nothing but vegetables, and only certain vegetables at that, and who fasts a great deal. His intelligence is very clear.