Kural - 328

Though great the gain of good should seem, the wise
Will any gain by staughter won despise

Explanation
The advantage which might flow from destroying life in sacrifice, is dishonourable to the wise (who renounced the world), even although it should be said to be productive of great good.

Tamil Transliteration
Nandraakum Aakkam Peridheninum Saandrorkkuk
Kondraakum Aakkang Katai.