Do you know that vegetarianism dates back to civilizations of ancient India and ancient Greece?
No way! I'm curious on this now... 
Yes it is true, it's values are based on the  practice of voluntary non-consumption of the flesh of any animal 
I personally like meat, but power to them if they can do it!
History of vegetarianism
The earliest records of vegetarianism as a concept and practice amongst a significant number of people are from ancient India and the ancient Greek civilizations in southern Italy and Greece. In both instances, the diet was closely connected with the idea of nonviolence toward animals (called "ahimsa" in India), and was promoted by religious groups and philosophers.
Following the Christianization of the Roman Empire in late antiquity (4th–6th centuries), vegetarianism nearly disappeared from Europe. Several orders of monks in medieval Europe restricted or
this ancient Sanskrit text, states that meat consumption should be okay because animal sacrifice was practiced in the Vedic age, that the flesh nourishes people, that man must eat to live and plants like animals are alive too, that the nature of life is such every life form eats the other, that no profession is totally non-violent because even agriculture destroys numerous living beings when the plough digs the land. The hunter's arguments are, states Alsdorf, followed by stanzas that present support for restricted meat-eating on specific