Leo Tolstoy claimed that “vegetarianism is the taproot of humanitarianism.” His point? For people who wish to sow the seeds of peace, we should be eating as peaceful a diet as possible. Eating meat supports killing animals, for no reason other than humans’ acquired taste for animals’ flesh. Great humanitarians from Leo Tolstoy and Mahatma Gandhi to Thich Nhat Hanh have argued that a vegetarian diet is the only diet for people who want to make the world a kinder place.