Kural - 873

Than men of mind diseased, a wretch more utterly forlorn,
Is he who stands alone, object of many foeman's scorn

Explanation
He who being alone, incurs the hatred of many is more infatuated than even mad men.

Tamil Transliteration
Emur Ravarinum Ezhai Thamiyanaaip
Pallaar Pakaikol Pavan.