Devotee: Material prosperity is not dependent upon duty.
Prabhupāda: What is that duty?
Devotee: Dharma.
Prabhupāda: Your duty is Kṛṣṇa consciousness. This duty, artificial. A man doing his duty, suppose a businessman, he starts business with a small amount, he becomes very rich. Another man starts business with big amount, he loses everything. I know one big family...
Guest (2): That is karma?
Prabhupāda: Huh?
Guest (2): That is karma.
Prabhupāda: "That is karma" means that whatever happiness he has to enjoy, that will come automatically. Otherwise, he is destined to have something—that will come. Yathā dukham ajajñātaḥ. So our only point is that human life is very valuable. We should not waste it for nothing. Modern..., modern method of civilization is to develop economic development, to live very comfortably. That's all right. Do it. Everyone do his own business. But you don't forget Kṛṣṇa. That is not good. The point is, our real business is to understand Kṛṣṇa. But people do not try to understand Kṛṣṇa; they simply try for economic development. Their first business should be to understand Kṛṣṇa. Other business should be secondary. So at the present moment, it is very difficult task.