દાનાવ દુશ્મન કરતાં નાદાન દોસ્ત માઠો.

dānāva duśmana karatāṁ nādāna dōsta māṭhō.

Literally: An ignorant friend is worse than a wise enemy.
What it means: A well-meaning but foolish person can cause more damage than a calculated opponent.

કહેવત સમુદાય (Kahevat Samuday) · 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.