But how this intelligence being used?

 

„You have got this human form of body, the best body. That is the instruction of all Vedic literature, simply stressing. But what is this material civilization? Simply working like cats and dogs. The same eating, sleeping, sex intercourse and defending. There are so many buildings in your city, Paris. Where is the culture to make the human life perfect? You have got very nice building. There is intelligence. So many nice buildings. People come to see the building. But that is not all. Simply if you utilize your intelligence... Certainly there is intelligence. But if you use your intelligence for the simply material activities, then you are not intelligent. You are a fool.  (Lecture on SB 2.1.6 -- Paris, June 14, 1974)

 „Similarly, if you keep yourself in Kṛṣṇa consciousness, there is no chance of coming māyā and attack you. No. That is not possible. But if you forget Kṛṣṇa, then māyā immediately will catch you. Just like side by side there is darkness and light. If you keep yourself light, there is no darkness, and if you keep yourself in darkness... So you have to use your intelligence. God has given you intelligence, mind, senses, and you have to utilize them. If you utilize, then you become free from these clutches of māyā or being covered by the three modes of material nature, ignorance, passion, even goodness. Even you become a very good man, moralist, that is also a bondage. That is also your bondage. You may have good knowledge, you may be a very good philosopher, you can understand, you may be a very learned man to understand what is this world, what is this, how it is working—very great scientist, advanced, educated man. That is goodness.” (Lecture -- Montreal, October 26, 1968)

„Prabhupāda: That is . . . karma jagat means that if you have to raise this house, then you have to cut the wood somewhere. You have to destroy somewhere, and then you can make house. You have to adjust things like that. You cannot create. This house was constructed, created, by destroying somewhere else. Is it not? So where is your creation? Creation is God's creation. He has created everything, and if you want to create, you have to destroy somewhere. That is karma.

Puṣṭa Kṛṣṇa: Sometimes these people are called duṣkṛtina. And you've mentioned that the duṣkṛtina, actually he has some intelligence, just misused.

Prabhupāda: Yes. Intelligence. After destroying the wood, you use your intelligence to construct this house. You have intelligence, there is no doubt. Human being must have intelligence. But that intelligence is given to him for getting out of the clutches of birth, death, old age and disease. He's not utilizing that intelligence for that purpose, therefore duṣkṛtina. Intelligence he has got. We don't say that modern world, they are unintelligent, fools. No, they have got intelligence. But the intelligence is being utilized for duṣkarya, which he should not have done. Duṣkarya. Karya and duṣkarya—work and bad work. His intelligence was given so that he could get relief from these clutches of birth, death, old age and disease, but that he's not utilizing. He's opening factory and creating another bad atmosphere. Therefore duṣkṛtina. To open a factory requires intelligence. So many machine is working, that's all right. But how this intelligence being used? To keep man in a hellish condition of life. Therefore duṣkṛtina.”

(Garden Discussion on Bhagavad-gita Sixteenth Chapter -- June 26, 1976, New Vrindaban)