જની માગણી-જોખમ ભરેલાં કામની જામીનગીરીએ ખોટી આશા જાણવી.

janī māgaṇī-jōkhama bharēlāṁ kāmanī jāmīnagīrīē khōṭī āśā jāṇavī.

Literally: Desiring things that cannot be obtained, asking for things that cannot be given, and standing surety for risky work should be known as false hope.
What it means: It is foolish to rely on outcomes that are inherently impossible or dangerous.

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.