દૈવને દયા નહીં, દૈતને દયા નહીં.

daivanē dayā nahīṁ, daitanē dayā nahīṁ.

Literally: Fate has no mercy, a demon has no mercy.
What it means: Destiny and cruel people are both utterly relentless and unfeeling.

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.