Once R. Baruch pestered the Rav [R. Schneur Zalman of Liadi] so much that the Rav  got very angry at him and screamed: “You have no respect for my Torah!!” 

R. Baruch replied: “Where does it say that a Jew must know how to learn?” And he answered his own question: “Yes, this is stated somewhere: [in Isaiah 1:17] ‘learn well’ but Rashi explains the meaning of the verse as ‘learn to do good.’”

 

I.F.

Mezhibozher Rebbe