When we meet people distributing Mayavadi literature should we challenge them philosophically or just recommend Prabhupadas books and leave?

From: Ravikumar Shukla

If we come across some of the institutions who sell their books teaching mayawadi philosophy for eg:”jeevanvidya.org” headed by Satguru Vaman Hari Pai, so as a servant of our spiritual master, should we dare to challenge their philosophy or atleast question their philosophy directly, or should we leave them on their own by suggesting some of the books from Srila Prabhupada’s great teachings

Also, if we don’t challenge them, are we being coward of not taking up the duty of carrying the message of our spiritual master sincerely. And, If we challenge them directly, are we acting too arrogantly, without thinking about how Krishna will feel about this.