Śrīla Prabhupāda . If they're ignorant, they have to accept knowledge from someone who knows the truth.
Student.  But they say, "What if what we are told is wrong?"
Śrīla Prabhupāda.  Then that is their misfortune. Because their imperfect senses cannot perceive God, they have to hear it from an authority. That is the process. If they don't approach the authority-if they approach a cheater-that is their misfortune. But the process is that wherever your senses cannot act, you must approach an authority to learn the facts.
The Frustration of the Atheists
Dr. Singh.  The difficulty is that in a group of atheists, you can't prove the existence of God.
Śrīla Prabhupāda.  The atheists are rascals. Let us teach the others-those who are reasonable. Everything has been made by someone: the sand has been made by someone, the water has been made by someone, and the sky has been made by someone. Kṛṣṇa consciousness means learning who that someone is.
Dr. Singh.  The scientists will say, "Present that someone to me so I can see Him."
Śrīla Prabhupāda.  And I answer them, "I am presenting that someone to you, but you have to take the training as well." You have to qualify your eyes to see that someone. If you are blind, but you do not want to go to the physician, how will you be cured of your blindness and see? You have to be treated; that is the injunction.
Student.  That step requires faith...
Śrīla Prabhupāda.  Yes, but not blind faith-practical faith. If you want to learn anything, you must go to an expert. That is not blind faith; it is practical faith. You cannot learn anything by yourself.
Student.  If somebody is actually sincere, will he always meet a bona fide  guru?
Śrīla Prabhupāda.  Yes.  Guru-kṛṣṇa-prasāde pāya bhakti-latā-bīja.  Kṛṣṇa is within you, and as soon as He sees that you are sincere, He will send you to the right person.
Student.  And if you are not completely sincere, you will get a cheater for a teacher?
Śrīla Prabhupāda.  Yes. If you want to be cheated, Kṛṣṇa will send you to a cheater. Kṛṣṇa is superintelligent. If you are a cheater, He will cheat you perfectly. But if you are actually sincere, then He will give you the right guidance. In  Bhagavad-gītā  (15.15) Kṛṣṇa says,  sarvasya cāhaṁ hṛdi sanniviṣṭo mattaḥ smṛtir jñānam apohanaṁ ca:  "I am seated in everyone's heart, and from Me come remembrance, knowledge and forgetfulness." Kṛṣṇa speaks of both remembrance and forgetfulness. If you are a cheater, Kṛṣṇa will give you the intelligence to forget Him forever.
Student.  But the atheists are in control. They have the dominance.
Śrīla Prabhupāda.  One kick of  māyā  and all their dominance is finished in one second. That is the nature of  māyā . The atheists are under control, but due to  māyā , or illusion, they think they're free.
moghāśā mogha-karmāṇo mogha jñānā vicetasaḥ rākṣasīm āsurīṁ caiva prakrtiṁ mohinīṁ śritāh