Kural - 257

With other beings' ulcerous wounds their hunger they appease;
If this they felt, desire to eat must surely cease

Explanation
If men should come to know that flesh is nothing but the unclean ulcer of a body, let them abstain from eating it.

Tamil Transliteration
Unnaamai Ventum Pulaaal Piridhondran
Punnadhu Unarvaarp Perin.