In your body, for maintenance, proper maintenance of the body you require the head, you require the arms, you require the belly, you require the legs. So all these four divisions of the body are required. You cannot say, "Oh, we don't require this head." Oh, it is nonsense. You require everything. You require the head, you require the arms, you require the belly, and you require the leg. This is fit body. Suppose if there is a body without head - oh, it is dead body. It is body undoubtedly, but if there is no head, simply the trunk is there, it is called dead body. The head is considered to be the intellectual part of the body. Similarly, if there is no brahmana in the society, that is a dead body. If there is no spiritual man in the society, that is a dead society.
Lecture on Bhagavad-gita 7.1, San Francisco, 17 March, 1968