Great sages means

Expressions researched:
"means brahmanas, Vaisnavas"

Srimad-Bhagavatam Lectures

Generally, "great sages" means brāhmaṇas, Vaiṣṇavas.

Lecture on SB 7.9.8 -- Mayapur, February 28, 1977:

Evaṁ paramparā-prāptam imaṁ rājarṣayo viduḥ (BG 4.2). Actually, śāstra is not for the loafer class. For highly learned brāhmaṇas and highly elevated kṣatriyas. And the vaiśyas and the śūdras, they are not expected to become very learned in śāstra, but, being directed by proper brāhmaṇa and kṣatriya, they are also perfect. The first perfect class, munayo, as it is said, sattvaikatāna gatayo munayo, "Great sages..." Generally, "great sages" means brāhmaṇas, Vaiṣṇavas. They are situated on the sattva-guṇa by devotional service. Rajas, tamo-guṇa cannot touch them. Naṣṭa-prāyeṣv abhadreṣu nityaṁ bhāgavata-sevayā (SB 1.2.18). The bhadra and abhadra, good and bad... So the rajo-guṇa and tamo-guṇa is bad, and sattva-guṇa is good. If we are situated, as it is said, sattvaikatāna-gatayo... If you are always situated on the sattva-guṇa, then everything is clear to be done. Sattva-guṇa means prakāṣa. Everything is clear, full knowledge. And rajo-guṇa is not clear. The example is given: just like the wood. There is fire, but the first symptom of fire, wood, you'll find smoke. When you set fire in the wood, first of all smoke comes. So smoke... First of all wood, then smoke, then fire. And from fire, when you engage the fire for fire sacrifice, that is the ultimate. Everything coming from the same source, from earth... The wood is coming from wood, the smoke is coming from smoke, the fire is coming... And fire, when engaged in fire sacrifice—svāhā—then it is proper use of fire. If one stays in the wood platform, that is completely forgetfulness. When one stays in the smoke platform, there is little light. When one is staying in fire platform, then full light. And when the light is engaged in Kṛṣṇa's service, that is perfect. We have to understand like that.