Even though a person is highly educated academically, if he cannot go beyond the sphere of mental activities then he is sure to perform only material activities and thus remain impure. There are so many persons in the modern world who have been highly educated in the materialistic universities, but it is seen that they cannot take up the movement of Kṛṣṇa consciousness and develop the high qualities of the demigods.
For example, a Kṛṣṇa conscious boy, even if he is not very well educated by the university standard, can immediately give up all illicit sex life, gambling, meat-eating and intoxication, whereas those who are not in Kṛṣṇa consciousness, although very highly educated, are often drunkards, meat-eaters, sexmongers and gamblers. These are practical proofs of how a Kṛṣṇa conscious person becomes highly developed in good qualities, whereas a person who is not in Kṛṣṇa consciousness cannot do so. We experience that even a young boy in Kṛṣṇa consciousness is unattached to cinemas, nightclubs, naked dance shows, restaurants, liquor shops, etc. He becomes completely freed. He saves his valuable time from being extravagantly spent in the way of smoking, drinking, attending the theater and dancing.