Pehle shabd pehchaniye, pichhe kije mol

Parkhi parkhe rattan ko, shabd ka mol na tol

पहले शब्द पहचानिये, पीछे कीजे मोल |

पारखी परखे रतन को, शब्द का मोल ना तोल ||

First you should understand what has been said by others. Then you can make the valuation of the words that you have listened. A goldsmith can test the purity of gold. One does not have any means for the valuation and weight of words.