Prabhupāda: She looks very intelligent face. Yes. Yes.
Anna Conan Doyle: I speak English.
Prabhupāda: Oh, that's nice.
Anna Conan Doyle: I'm Danish, but I speak English.
Prabhupāda: Oh, that's nice. It is very nice. So intelligent men and women should take interest in this great movement. It is a very scientific spiritual movement. People are suffering for lack of spiritual knowledge. They have become materially like animals. Materialism means animalism. Yes. Materialism means animalism. Animalism means in the lower grade of existence. What is the difference between dog and a human being? He has got a lower grade body, and the human being has got a higher grade body.
So the more we become materialistic, we get lower grade body. In the lower grade body, the consciousness works only on four activities: eating, sleeping, sex life and defending. This is lower grade activities. And higher grade activities: working for understanding God. That is higher grade life. In the lower grade life, nobody can understand God. In the higher grade life, one can understand God. Yes. One can feel with intelligence. Just like dog may understand this is day, this is night. But he does not understand why it is day, why it is night.
But a man can understand that it is day because the sun is there, and it is night because sun is now set. That is the difference between dog, dog and man—better knowledge. So as we advance in better knowledge, that is perfection of life. And the topmost knowledge is to understand Kṛṣṇa. Then he's most perfect being. That is perfection. Knowledge other than Kṛṣṇa consciousness—degraded knowledge, or lower grade knowledge.