There are three kinds of devotees: The lower grade devotees, they have high regard for the Deity in the temple, but not very much regard for devotees or people in general. The second grade devotee takes compassion with innocent non-devotees. In that stage, he has got 4 kinds of vision: one is that he always keeps Krishna as the most Lovable Object, second is that he makes intimate friendship with his devotee God-brothers or any other devotees, third is that he takes compassion with innocent non-devotees, and tries to convince them about the importance of Krishna Consciousness, and fourth is that he does not take any serious interest for the atheist class of men. The first grade devotee, of course, sees everyone in relationship with Krishna and as such, he makes no distinction between a devotee or nondevotee. His vision is high grade, because he sees that everyone is engaged in Krishna's service directly or indirectly. This position of high-grade devotee should never be imitated. It was possible only in Lord Caitanya or Lord Nityananda, or Haridasa Thakura.
Letter to Madhusudana, 29 July, 1968