Prabhupāda: (laughs) Kṣat means injury, and triya means one who delivers. Just like Parīkṣit Mahārāja immediately took his sword, "Oh, why you are injuring one cow in my kingdom?" The kṣatriya's business is to give protection to the citizen from being injured by others. That is called kṣatriya. Brāhmaṇa means whose knowledge is so perfect that he knows what is God. That is brāhmaṇa. And śūdra means one who laments. Śocati ti śūdra. Śocati.
Śrutakīrti: Na śocati na kāṅkṣati. Na śocati . . .
Prabhupāda: Śocati means in everything he laments. "Hai, hai, I have lost so much things. I have not these things, I have not that thing." So at the present moment, all the people, they are so dissatisfied that they are all śūdras. Śūdra is always in want. So who is not, at the present moment, not in want? Everybody's in want. Therefore everybody is a śūdra now. Kalau śūdra-sambhavaḥ. And that is his qualification, always feeling in want, śocati. And his work is to serve others, master. A brāhmaṇa will not work under anybody. A kṣatriya will not work under anybody. Nowadays the industrial development has taken place because people are śūdras. They want some service. So-called technologist and laborers and . . . everything. Everyone is searching after good job. He cannot live independently. Just like a dog. A dog cannot live independently. He must have a master. Then he is happy. Is it not? Otherwise it is street dog.
So modern education is that they are creating śūdras, to become dependent on others. And therefore modern economic development is taking place because there are so many people, they are prepared to give them service. Suppose in your bank, if you withdraw from the service, the bank will stop. Industry will stop. So because there is no such division as brāhmaṇa, kṣatriya, vaiśya, śūdra—everyone is śūdra—therefore this economic development, so-called economic development, has become possible. But in spite of all this economic development, because people are śūdras, they cannot be happy. Because śocati, they will lament, strike. Even they are getting thousands of rupees—strike. Even they get five hundred thousands of rupees, still there will be strike. Because they are śūdras.