According to the modes of material nature, the brāhmaṇa should be selected, the kṣatriya should be selected, the vaiśyas or the mercantile people should be selected, and the śūdras, the worker class, should be selected.
Then Kṛṣṇa says, that how the brahminical class should be educated. This should be taken very seriously by educational department of all countries. And it is the duty of the government to see that every man according to his quality is working, is employed. Not that... Secular state does not mean they should be callous about the quality and work of the citizens. There must be department of practical psychology to see the students, in which class he belongs to. Either he belongs to the first-class, brāhmaṇa class, or second-class, the kṣatriya class, administrator class, and the third-class, mercantile, or business man, and the fourth-class, śūdras, worker. If education is given according to the quality and position, then there will be complete system in the whole human society. Take the same example. Just like your body, if your head is working nicely, if your hand is working nicely, if your stomach is working nicely, if your leg is working nicely, then the whole body is to be considered as healthy and working nicely. If any part of this body, either head, leg, or arms or belly, does not work nicely, then the whole body becomes diseased. So that is the instruction of Kṛṣṇa, Bhagavad-gītā. That... Not that...
Now there is a hobby that classless society. Classless society cannot be. That is not possible. So long you are in the material world there must be classes. By nature, there is. Just like even in birds, there are a class of birds known as the crows and there is a class of birds which are called the swans. The swans will try to reside in a place where there is very clean water, flowers, good trees, nice arrangement parking. So they will flock there. Birds of the same feather flock together. And the crows, the will flock... In your country you don't find many crows, but in India there are many crows. They go to the place where all garbages are there. They'll enjoy there. So there is division actually, taste. But one thing is, that the human form of body, although there is natural such division, but one can be raised to the higher position by this Kṛṣṇa consciousness movement. So far material body is concerned, you cannot change the quality. This is already. One has got the particular type of body by nature's arrangement according to the quality. According to the quality. Now, if you want to change him to the better quality, then you have to accept this Kṛṣṇa consciousness. Because Kṛṣṇa consciousness is on the spiritual platform. It has nothing to do with the material platform. From the material platform, you cannot change anyone's quality.
For example, I can tell you, practical example, in United States, America, the government is spending millions of dollars to stop this intoxication habit, LSD habit. Many responsible government officers, they have given us certificate. But they could not control. But in our Kṛṣṇa consciousness movement, anyone who is coming, even though coming from the LSD-addicted society, still, as soon as he comes to our society he gives us not only LSD or any intoxication, he gives up even drinking tea, coffee and smoking cigarette. You can at once check. Because our principle is: anyone who wants to join seriously this Kṛṣṇa consciousness movement, just like these boys, they have joined, our first condition is that one must give up these four prohibited things: no illicit sex, no gambling, no meat-eating, no intoxication. So that is being possible. Although they are habituated to all these things from their very beginning of life, but as soon as they take to Kṛṣṇa consciousness activities, they give up these habits very easily.