yata adhyÄpaka, Ära tÄá¹…ra Å›iá¹£ya-gaṇa
dharmÄ«, karmÄ«, tapo-niá¹£á¹ha, nindaka, durjana
yata - all; adhyÄpaka - professors; Ära - and; tÄá¹…ra - their; Å›iá¹£ya-gaṇa - students; dharmÄ« - followers of religious ritualistic ceremonies; karmÄ« - performers of fruitive activities; tapaḥ-niá¹£á¹ha - performers of austerities; nindaka - blasphemers; durjana - rogues.
Here is a depiction of materialists who have no knowledge of devotional service. They may be very religious and may work very systematically or perform austerities and penances, but if they blaspheme the Supreme Personality of Godhead they are nothing but rogues. This is confirmed in the Hari-bhakti-sudhodaya (3.11):
bhagavad-bhakti-hÄ«nasya jÄtiḥ Å›Ästraá¹ japas tapaḥ
aprÄṇasyaiva dehasya maṇá¸anaá¹ loka-rañjanam
If they are without knowledge of devotional service to the Lord, then great nationalism, fruitive, political or social work, science or philosophy are all simply like costly garments decorating a dead body. The only offense of persons adhering to these principles is that they are not devotees; they are always blasphemous toward the Supreme Personality of Godhead and His devotees.