Mbh 13.115.2b

That man who having eaten meat gives it up afterwards, acquires merit by such an act that is so great that a study of all the Vedas or a performance, O Bharata, of all the sacrifices, cannot bestow its like. It is exceedingly difficult to give up meat after one has become acquainted with its taste. Indeed, it is exceedingly difficult for such a person to observe the high vow of abstention from meat, a vow that assures every creature by dispelling all fear. That learned person who giveth to all living creatures the Dakshina of complete assurance comes to be regarded, without doubt, as the giver of life-breaths in this world.[524] Even this is the high religion which men of wisdom applaud. The life-breaths of other creatures are as dear to them as those of one's to one's own self. Men endued with intelligence and cleansed souls should always behave towards other creatures after the manner of that behaviour which they like others to observe towards themselves. It is seen that even those men who are possessed of learning and who seek to achieve the highest good in the form of Emancipation, are not free from the fear of death. What need there be said of those innocent and healthy creatures endued with love of life, when they are sought to be slain by sinful wretches subsisting by slaughter? For this reason, O monarch, know that the discarding of meat is the highest refuge of religion, of heaven, and of happiness. Abstention from injury is the highest religion. It is, again, the highest penance. It is also the highest truths from which all duty proceeds. Flesh cannot be had from grass or wood or stone. Unless a living creature is slain, it cannot be had. Hence is the fault in eating flesh. The deities who subsist upon Swaha, Swadha, and nectar, are devoted to truth and sincerity. Those persons, however, who are for gratifying the sensation of taste, should be known as Rakshasas wedded to the attribute of Passion.