Kural - 487

The glorious once of wrath enkindled make no outward show,
At once; they bide their time, while hidden fires within them glow

Explanation
The wise will not immediately and hastily shew out their anger; they will watch their time, and restrain it within.

Tamil Transliteration
Pollena Aange Puramveraar Kaalampaarththu
Ulverppar Olli Yavar.