Virtue (அறத்துப்பால்) — Ascetic Virtue (துறவறவியல்) — Not doing Evil (இன்னாசெய்யாமை)

Kural 311:
சிறப்பீனும் செல்வம் பெறினும் பிறர்க்குஇன்னா
செய்யாமை மாசற்றார் கோள்.
siRappeenum selvam peRinum piRarkkuinnaa
seyyaamai maasatraar koaL
English couplet:
Though ill to neighbour wrought should glorious pride of wealth secure,
No ill to do is fixed decree of men in spirit pure.
Explanation: It is the determination of the spotless not to cause sorrow to others, although they could (by so causing) obtain the wealth which confers greatness.

Kural 312:
கறுத்துஇன்னா செய்தவக் கண்ணும் மறுத்தின்னா
செய்யாமை மாசற்றார் கோள்.
kaRuththuinnaa seydhavak kaNNum maRuththinnaa
seyyaamai maasatraar koaL
English couplet:
Though malice work its worst, planning no ill return, to endure,
And work no ill, is fixed decree of men in spirit pure.
Explanation: It is the determination of the spotless not to do evil, even in return, to those who have cherished enmity and done them evil.

Kural 313:
செய்யாமல் செற்றார்க்கும் இன்னாத செய்தபின்
உய்யா விழுமந் தரும்.
seyyaamal setraarkkum innaadha seydhapin
uyyaa vizhumanh tharum
English couplet:
Though unprovoked thy soul malicious foes should sting,
Retaliation wrought inevitable woes will bring.
Explanation: In an ascetic inflict suffering even on those who hate him, when he has not done them any evil, it will afterwards give him irretrievable sorrow.

Kural 314:
இன்னாசெய் தாரை ஒறுத்தல் அவர்நாண
நன்னயஞ் செய்து விடல்.
innaasey thaarai oRuththal avarnhaaNa
nannayanhj seydhu vidal
English couplet:
To punish wrong, with kindly benefits the doers ply;
Thus shame their souls; but pass the ill unheeded by.
Explanation: The (proper) punishment to those who have done evil (to you), is to put them to shame by showing them kindness, in return and to forget both the evil and the good done on both sides.

Kural 315:
அறிவினான் ஆகுவ துண்டோ பிறிதின்நோய்
தந்நோய்போல் போற்றாக் கடை.
aRivinaan aakuva thuNdoa piRidhinnhoai
thanhnhoaipoal poatraak kadai
English couplet:
From wisdom's vaunted lore what doth the learner gain,
If as his own he guard not others' souls from pain?.
Explanation: What benefit has he derived from his knowledge, who does not endeavour to keep off pain from another as much as from himself ?.

Kural 316:
இன்னா எனத்தான் உணர்ந்தவை துன்னாமை
வேண்டும் பிறன்கண் செயல்.
innaa enaththaan uNarndhavai thunnaamai
vaeNdum piRan-kaN seyal
English couplet:
What his own soul has felt as bitter pain,
From making others feel should man abstain.
Explanation: Let not a man consent to do those things to another which, he knows, will cause sorrow.

Kural 317:
எனைத்தானும் எஞ்ஞான்றும் யார்க்கும் மனத்தானாம்
மாணாசெய் யாமை தலை.
enaiththaanum eGnGnaandrum yaarkkum manaththaanaam
maaNaasey yaamai thalai
English couplet:
To work no wilful woe, in any wise, through all the days,
To any living soul, is virtue's highest praise.
Explanation: It is the chief of all virtues not knowingly to do any person evil, even in the lowest degree, and at any time

Kural 318:
தன்னுயிர்ககு ஏன்னாமை தானறிவான் என்கொலோ
மன்னுயிர்க்கு இன்னா செயல்.
thannuyirkaku ennaamai thaanaRivaan en-koloa
mannuyirkku innaa seyal
English couplet:
Whose soul has felt the bitter smart of wrong, how can
He wrongs inflict on ever-living soul of man?.
Explanation: Why does a man inflict upon other creatures those sufferings, which he has found by experience are sufferings to himself ?.

Kural 319:
பிறர்க்கின்னா முற்பகல் செய்யின் தமக்குஇன்னா
பிற்பகல் தாமே வரும்.
piRarkkinnaa muRpakal seyyin thamakkuinnaa
piRpakal thaamae varum
English couplet:
If, ere the noontide, you to others evil do,
Before the eventide will evil visit you.
Explanation: If a man inflict sorrow upon others in the morning, it will come upon him unsought in the very evening.

Kural 320:
நோயெல்லாம் நோய்செய்தார் மேலவாம் நோய்செய்யார்
நோயின்மை வேண்டு பவர்.
noayellaam noaiseydhaar maelavaam noaiseyyaar
noayinmai vaendu pavar
English couplet:
O'er every evil-doer evil broodeth still;
He evil shuns who freedom seeks from ill.
Explanation: Sorrow will come upon those who cause pain to others; therfore those, who desire to be free from sorrow, give no pain to others.