Kural - 876

Whether you trust or not, in time of sore distress,
Questions of diff'rence or agreement cease to press

Explanation
Though (one's foe is) aware or not of one's misfortune one should act so as neither to join nor separate (from him).

Tamil Transliteration
Thera?num Theraa Vitinum Azhivinkan
Theraan Pakaaan Vital.