Mark the Ascetic - On the Spiritual Law 10-12

10. Do not become a disciple of one who praises himself, in case you learn pride instead of humility.
11. Do not grow conceited about your interpretations of Scripture, lest your intellect fall victim to blasphemy.
12. Do not attempt to explain something difficult with contentiousness, but in the way which the spiritual law enjoins: with patience, prayer and unwavering hope. 13. Blind is the man crying out and saying: 'Son of David, have mercy on me' (Luke 18:38). He prays with the body alone, and not yet with spiritual knowledge.