According to Bhagavad-gita, as we are preaching, we are also opening centers, self-help center. In New Vrindaban, West Virginia, we have already opened a very big community center. We are going to open in California also, and we have already opened in India also, that we occupy a certain tract of land, we produce our own food, we keep our cows and take their milk, and there is no scarcity. Everything there. We don't require to go outside the land for our livelihood. So we are advising, we are making centers like that, that "Be self-sufficient. Save time for spiritual culture." That is human civilization.

From Srila Prabhupada's lecture at World Health Organization — June 6, 1974, Geneva