હંસ કહે હંસની સુને, મોતી બિન નહીં ચાખ;

haṁsa kahē haṁsanī sunē, mōtī bina nahīṁ cākha;

Literally: The swan says and the female swan listens: do not taste anything but pearls.
What it means: Noble souls maintain their high standards and integrity, refusing to compromise even in difficult times.

Also said as

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.