સોનું કસવા કસોટી, ને માણસને કસવા મામલો.

sōnuṁ kasavā kasōṭī, nē māṇasanē kasavā māmalō.

Literally: A touchstone to test gold, and a crisis to test a man.
What it means: True character and loyalty are revealed only during times of difficulty or conflict.

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.