Learned means brahmana. Learned means that one who knows that Brahman. Brahman, the spirit soul, is part and parcel of the Supreme Brahman. So one who has come to that knowledge, that "I am not this body; I am spirit soul; aham brahmasmi," that is knowledge. Knowledge begins from there. If one does not reach to that point, aham brahmasmi, then he is animal. The animal thinking like that, "I am rickshaw," "I am motorcar," "I am cat," "I am dog," "I am this," "I am that." That is animal thinking. But a person... Learned thinking is that "I am not this body; I am part and parcel of the Supreme Brahman, aham brahmasmi."
Lecture on Bhagavad-gita 2.21-22, London, 20 August, 1973