Kural - 20

When water fails, functions of nature cease, you say;
Thus when rain fails, no men can walk in 'duty's ordered way'

Explanation
If it be said that the duties of life cannot be discharged by any person without water, so without rain there cannot be the flowing of water.

Tamil Transliteration
Neerindru Amaiyaadhu Ulakenin Yaaryaarkkum
Vaanindru Amaiyaadhu Ozhukku.