Thirukkural 835

ஒருமைச் செயலாற்றும் பேதை எழுமையும் தான்புக் கழுந்தும் அளறு.

Orumaich cheyalaaRRum pedhai ezhumaiyum Thaan puk kazhundum aLaRu.

The fool who attends to one task alone, though he live seven births over, will never emerge from the pit of his own making.