Havamal

A foolish man thinks all who on him smile to be his friends; he feels it not, although they speak ill of him, when he sits among the clever.

Ósnotr maðr hyggr sér alla vera viðhlæjendr vini hitki hann fiðr þótt þeir um hann fár lesi ef hann með snotrum sitr

Havamal: 24, Gestaþáttr