குறள் 318

தன்னுயிர்ககு ஏன்னாமை தானறிவான் என்கொலோ
மன்னுயிர்க்கு இன்னா செயல்.

Stanza 318

Why does one hurt others
Knowing what it is to be hurt?

Meaning:

Why does a man inflict upon others those sufferings, which he found by experience are sufferings to himself?