Brahmana means spiritual guidance, ksatriya means material guidance. So these things are necessity. But where are those brahmanas and ksatriyas? They are training everyone sudra. Work hard like hogs and dogs and fill up your hungry belly. That's all. This is the modern civilization. Kali-yuga's symptoms: daksyam udaram bharitah. One man is supposed to be very expert who has learned how to fill up his belly. That's all. No other knowledge is required. Whether you have sumptuously put foodstuff within your belly.

Srila Prabhupada — April 12, 1974, Bombay