We can become a teacher of a particular subject matter, but that does not mean you should be worker. Still, there are many professors, they are teacher; they are not worker. But if the teachers are available, why you should become a teacher? Let them teach. We have to save our time for advancing in Kṛṣṇa consciousness. After all, this, in the modern world they have invented so many varieties of occupation unnecessarily, to develop economic condition. Is it not? But our philosophy is that you cannot develop your economic condition, then you are destined to suffer or enjoy. So one should not waste his time for so-called development of economic condition. He should utilize his time for advancing in Kṛṣṇa consciousness, which was not possible in any other form of life. When we had cat's and dog's life, tree's life, we could not do that, development of Kṛṣṇa consciousness. Now we have got human form of life, we should fully utilize it for developing Kṛṣṇa consciousness. Why should we waste our time for economic development? Economic development is not possible. Then every work, every city, they are trying to develop this economic condition, but they're simply struggling. Why they word it of "Struggle for existence" is there? It is not possible. Why there are varieties of social position? Everyone could come on the same standard. That is not possible. Anywhere you go, the three classes of men—upper class, middle class and lower class—is there. Is there any country where there is no these three classes, only the upper class? Is there any country?
Yogeśvara: No.
Prabhupāda: Then what is the use? (coughing) Anywhere you'll go, you'll find this upper class, (coughing) middle class and lower class. When I . . . in the beginning, I thought that America, everyone is richer class. So when I came, I saw the three classes are already there. The lower class, although the country has good facilities not to become lower class, still, voluntarily they are hippies, lower class. They are lying on the street. Although he has got very good opportunity to become first class, but he is lying on the street. Why? What is the answer?