Kural - 671

The Resolve is counsel's end, If resolutions halt
In weak delays, still unfulfilled, 'tis grievous fault

Explanation
Consultation ends in forming a resolution (to act); (but) delay in the execution of that resolve is an evil.

Tamil Transliteration
Soozhchchi Mutivu Thuniveydhal Aththunivu
Thaazhchchiyul Thangudhal Theedhu.