One cannot be qualified unless he is God conscious. His all qualities immediately become rejected. "Why? He has passed M.A., Ph.D. and D.A.C., and he's honored..." That's all right, but in spite of all his education, he will create simply havoc in the world. That's all. Harāv abhaktasya kuto mahad-guṇā mano-rathenāsati dhāvato bahiḥ (SB 5.18.12). Because he is hovering over the mental plane, he'll simply create havoc. His education will be utilized for his sense gratification, and he will not care for anything. Just like great scientists have discovered the atom bomb, by scientific research. What is the effect? Now by one drop you can kill many millions of people. That is his advancement of science. "Oh, why don't you create something that people will not die?" That is not... "I can assure death, but I cannot save death. That is not in my power." Then what kind of scientist you are? You create something, you create some medicine, that "Take this tablet and no death, no more, at least, no disease." That is not possible. There is disease, development of different kinds of disease, and they are discovering different kinds of medicine. That is a struggle. That is not scientific improvement. There is one problem before you, and you are creating some antidote. That's all. This is struggle, struggle for existence. This is not scientific advancement.
But how one can be stopped from repetition of birth and death? That is here in the Bhagavad-gītā. What is that? Kṛṣṇa says, janma karma me divyaṁ yo jānāti tattvataḥ (BG 4.9). You try to understand Kṛṣṇa only, what is Kṛṣṇa. Janma karma yo jānāti tattvataḥ, anyone who knows in truth, not superficially: "Oh, Kṛṣṇa I know. In the Seven..., there is a place. They have got an idol of Kṛṣṇa. They are worshiping. I know everything about Kṛṣṇa." Not like that. Try to understand Kṛṣṇa, what He is. He is Kṛṣṇa undoubtedly, but people want to know actually what is Kṛṣṇa. That we are open. So if one simply understands what is Kṛṣṇa, the result is tyaktvā dehaṁ punar janma naiti (BG 4.9). Simply by understanding Kṛṣṇa, there is no more taking birth. Punar janma. If you take birth, then there is death. If you stop your birth, then you can stop your death also. Because birth and death is in relationship with this body. If you don't have a material body, then there is no question of birth, death, old age and disease.