Kural - 1166

A happy love 's sea of joy; but mightier sorrows roll
From unpropitious love athwart the troubled soul

Explanation
The pleasure of lust is (as great as) the sea; but the pain of lust is far greater.

Tamil Transliteration
Inpam Katalmatruk Kaamam Aqdhatungaal
Thunpam Adhanir Peridhu.