ડાંસીએ દાટ વાળ્યો, હરખ હૈયાનો ટાળ્યો.

ḍāṁsīē dāṭa vāḷyō, harakha haiyānō ṭāḷyō.

Literally: The gadfly caused total ruin and destroyed the heart's joy.
What it means: A tiny nuisance or insignificant person can ruin a major source of happiness or cause immense trouble.

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.