Example is more powerful than precept. It is by example that we convince others how to behave. Srila Prabhupada said that our example would prove that we were genuinely experiencing Krishna consciousness. It is that genuineness that attracts others, not our words. If we are truly attracted to Krishna, we will be able to attract others; because Krishna is all attractive, those who are attracted to Him are also attractive.
(SB 3.29.18, Krasnodar, June 1996)