Thirukkural 873

ஏமுற் றவரினும் ஏழை தமியனாய்ப் பல்லார் பகைகொள் பவன்.

Emuṛṛavariṉum ezhazhai tamiyaṉāyp pallār pahaik oḷ pavaṉ

Poorer than the wretched is he who stands alone / and makes many enemies through his own conduct.