Kautilya's Arthashastra 7.6.38

7.6.38

arito 'bhyāgato doṣaḥ śatrusaṃvāsakāritaḥ //
sarpasaṃvāsadharmitvān nityodvegena dūṣitaḥ //

That kind of wicked character which has from the beginning grown upon a man owing to his association with enemies is as ever fraught with danger as constant living in company with a snake;