tolerance is required

 
Therefore it is advised, titiksavah karunikah suhrdah sarva-dehinam [SB 3.25.21]. A devotee should be so advanced that in spite of being troubled by the asuras, he should tolerate, titiksavah, and still he should be kind upon him, not that "This man is talking against me, against God. Therefore I shall be angry and drive him away." No. Titiksavah karunikah. Everyone in this material world, more or less, they are asuras, atheists. So if you want to preach, then you have to learn tolerance and speak in such a way that these asura can become also devotee. That is the business.    (More...)