Brahmana means one who knows...

Expressions researched:
"Brahmana means one who knows"

Bhagavad-gita As It Is Lectures

Brāhmaṇa means one who knows brahma, the supreme.

Lecture on BG 1.28-29 -- London, July 22, 1973:

So dṛṣṭvā imaṁ svajanam. Arjuna is a great warrior, fighter, and for a kṣatriya to kill one is not very difficult task. The kṣatriyas are trained up. Hunting. Hunting is allowed for the kṣatriyas. Just like medical practitioners, they are trained up how to practice surgical operation on dead body. It is not possible to, of course, for a gentleman, to push knife in someone's body. It is naturally very difficult thing. Rogues and thieves, they can stab. So as the doctors, medical men, surgeons are trained up to operate their knife on the dead body to see where are the nerves, similarly, kṣatriyas are also allowed for being trained how to kill. Kṣatriya means... Kṣat. Kṣat means injury. And tra means trāyate, saves. A kṣatriya has to save the citizens from being injured by others. He is called kṣatriya. Brāhmaṇa means one who knows brahma, the supreme. So brāhmaṇa, kṣatriya, vaiśya, śūdra. These divisions are there according to quality. Guṇa-karma-vibhāgaśaḥ (BG 4.13). By guṇa. Guṇa means quality. And karma means actual operation of the guṇa.