કમાણસનાં કલાં, સમાણસ સાંભળે નહીં;

kamāṇasanāṁ kalāṁ, samāṇasa sāṁbhaḷē nahīṁ;

Literally: A good person does not listen to the words of a bad person;
What it means: Virtuous people ignore the abusive or wicked talk of bad-natured individuals.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1923) · read from the scan by machine — the Gujarati itself is unchecked · English is machine-made and nobody has checked it yet

Heard it differently, or know we've got the sense wrong? Tell us — that is exactly the kind of correction this needs.