The most deadly of wild beasts is a backbiter, of tame ones a latterer

Similar English and Irish sayings:

Were there no hearers, there would be no backbiters Were there no hearers, there would be no backbiters
A deadly disease neither physician nor physic can ease A deadly disease neither physician nor physic can ease
The poor man’s wisdom is as useless as a palace in a wilderness The poor man’s wisdom is as useless as a palace in a wilderness

Proverbs and English sayings