குறள்320                                                                                                                               

நோயெல்லாம் நோய்செய்தார் மேலவாம் நோய்செய்யார்
நோயின்மை வேண்டு பவர்.

Stanza 320

Hurt comes to the hurtful; hence it is
That those don’t hurt who do not want to be hurt.

Meaning:

Every sorrow will come upon those who give pain to others; therefore those, who desire to be free from sorrow, give no pain to others.