I have traveled all over the world so many times. Because there is no varnasrama-dharma, how loose they are. That has been experimented. I have seen. So actually, unless one comes to the standard of varnasrama-dharma, he is not considered to be a human being.

Srila Prabhupada, SB 1.2.8 Lecture, Vrindavan, October 19, 1972