"One who is not in Kṛṣṇa consciousness, he cannot have any good qualification." Why? There are so many doctors, Ph.D.s, and M.A.C., B.A.C., and very, very big man, and because they are not in Kṛṣṇa consciousness they have no good qualification? One may ask question like that. But the answer is that they may be very learned man in the estimation of common man, but manorathenāsati dhāvato bahiḥ: if a man is educated materially, without any spiritual understanding, without any Kṛṣṇa consciousness, then his field of activities is the mind.
He cannot surpass the field of activities beyond the mind. Those who are grossly materialistic, they are working on the field of this gross body, senses. And those who are a little more advanced, the so-called philosophers, mental speculators, scientists, or many others, they are working on the mental plane.
So unless you promote yourself to the platform of spiritual understanding, there cannot be any good qualification. Therefore harāv abhaktasya kuto mahad-guṇā (SB 5.18.12). One who is not in Kṛṣṇa consciousness, he cannot have any good qualification, because his field of activities is on the mental plane. As it is stated in the previous verse, being situated on the mental plane, even a learned man, I mean to say, transgresses the limits of law. There are so many.