Kural - 394

You meet with joy, with pleasant thought you part;
Such is the learned scholar's wonderous art

Explanation
It is the part of the learned to give joy to those whom they meet, and on leaving, to make them think (Oh! when shall we meet them again.).

Tamil Transliteration
Uvappath Thalaikkooti Ullap Piridhal
Anaiththe Pulavar Thozhil.