Kural - 833

Ashamed of nothing, searching nothing out, of loveless heart,
Nought cherishing, 'tis thus the fool will play his part

Explanation
Shamelessness indifference (to what must be sought after), harshness, and aversion for everything (that ought to be desired) are the qualities of the fool.

Tamil Transliteration
Naanaamai Naataamai Naarinmai Yaadhondrum
Penaamai Pedhai Thozhil.