And you must all study very scrutinizingly all of the books so that when the need arises you can repeat in your own words their purport. Also I will be very pleased if you contribute articles to BTG. By writing regularly, what you read will become realized. As much as possible read, chant, and preach.

(From Srila Prabhupada's letter to Hrdayananda Goswami, January 6, 1972)