The difference between animal society and human society is that a human being, whoever he may be, he can, if he is taught, if he is given training, if he is educated, he can understand his real position, that he is not this body, but he is pure consciousness; he is spirit soul. But in the animal society, however a big animal may be, either he may be a lion or a tiger or an elephant or any other big animal, he cannot be taught about the constitution of the soul, although he has got the soul also. A lower animal, he has also got the consciousness. He has got also a soul. But unfortunately he hasn't got the facility, the bodily facility or developed intelligence by which he can understand that, what he is. So that is the difference between animal and human being. So in the human society, if they do not care to understand this factual position of his soul or consciousness, then he is no better than the animal.
Lecture on Bhagavad-gita 2.46-47, New York, 28 March, 1966