અટકલે જે ગમે તે ઠોકી દેવામાં પટ રહે નહી.

aṭakalē jē gamē tē ṭhōkī dēvāmāṁ paṭa rahē nahī.

Literally: There is no skill in hammering down whatever one likes by guesswork.
What it means: Acting on impulse or speculation without proper knowledge is not a sign of competence.

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.