Question

Speech on Good manners will open doors that education cannot or We never know the worth of water till the well is dry.

Answer 1

suppose you are a well educated Google member but one day a hindi medium poor person comes to the boss office and you are also called for a promotion, if you will speak rudely with the poor, the poor and the boss might think that you do not have good manners and no one will respect you after it. we can say that it can be related to the upper sentence.