Kural - 836

When fool some task attempts with uninstructed pains,
It fails; nor that alone, himself he binds with chains

Explanation
If the fool, who knows not how to act undertakes a work, he will (certainly) fail (But) is it all ? He will even adorn himself with fetters.

Tamil Transliteration
Poipatum Ondro Punaipoonum Kaiyariyaap
Pedhai Vinaimer Kolin.