મનુષ્યમાં નાપિક જુઓ, કાગ પંખી નિરધાર; પશુમાં જાંબુક જુઓ, હગ ચંચળ સરદાર.

manuṣyamāṁ nāpika juō, kāga paṁkhī niradhāra; paśumāṁ jāṁbuka juō, haga caṁcaḷa saradāra.

Literally: Among humans look for the barber, among birds the crow, among animals the jackal; these are the fickle leaders.
What it means: Certain types of people and creatures are inherently untrustworthy or opportunistic.

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.