Kural - 662

'Each hindrance shun', 'unyielding onward press, If obstacle be there,'
These two define your way, so those that search out truth declare

Explanation
Not to perform a ruinous act, and not to be discouraged by the ruinous termination of an act, are the two maxims which, the wise say, from the principles of those who have investigated the subject.

Tamil Transliteration
Oororaal Utrapin Olkaamai Ivvirantin
Aarenpar Aaindhavar Kol.