આથર બદલ્યા, પણ ગધેડા તેના તે છે.

āthara badalyā, paṇa gadhēḍā tēnā tē chē.

Literally: The pack-saddles were changed, but the donkeys remain the same.
What it means: Changing superficial appearances or titles does not alter a person's underlying foolishness.

Also said as

ગુજરાતી કહેવતસંગ્રહ (Gujarati Kahevat Sangrah) (1921) · 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.