Enthusiasm means to take things very seriously, utsahad dhairyat, and patiently. Although we are determined to go back to home, back to Godhead, so we should patiently follow the rules and regulations. So these are the six principles: enthusiasm and firm determination and patience and executing the regulative principles, tat-tat-karma-pravartanat, and sato vrtteh, means behavior must be very honest, no duplicity, and utsahad dhairyat niscayat tat-tat-karma-pravartanat, and sato vrtteh, dealing must be very honestly, no hypocrisy, tat-tat-karma-pravartanat, sadhu-sanga, and in the association of devotees. If you follow these six principles, namely enthusiasm, determination, patience, and executing the regulative principles and keep yourself honest and in the association of devotee, if you follow these six principle, then your success is sure.

Srila Prabhupada, Departure Lecture, Caracas, February 25, 1975