A brāhmaṇa does not become anyone's servant. To render service to someone else is the business of the śūdras. A brāhmaṇa is always independent because he is a teacher, spiritual master and advisor to society. The members of society provide him with all the necessities of life. In the Bhagavad-gītā the Lord says He has divided society into four divisions—brāhmaṇa, kṣatriya, vaiśya and śūdra. A society cannot run smoothly without this scientific division. A brāhmaṇa should give good advice to all the members of society, a kṣatriya should look after the administration, maintaining law and order in society, vaiśyas should produce and trade to meet all the needs of society, whereas śūdras should render service to the higher sections of society (the brāhmaṇas, kṣatriyas and vaiśyas).
(Sri Caitanya Caritamrta-----1:13:82-----purport).

Brāhmaṇas generally used to become astrologers, Āyur-vedic physicians, teachers and priests. Although highly learned and respectable, such brāhmaṇas went from door to door to distribute their knowledge. A brāhmaṇa would first go to a householder's home to give information about the functions to be performed on a particular tithi, or date, but if there were sickness in the family, the family members would consult the brāhmaṇa as a physician, and the brāhmaṇa would give instruction and some medicine. Often, since thebrāhmaṇas were expert in astrology, people would also be greatly inquisitive about their past, present and future.
(Sri Caitanya Caritamrta-----1:17:103-----purport).

Higher education is not meant for everyone. Only selected individuals trained in brahminical culture should be allowed to pursue a higher education. Educational institutions should not aim to teach technology, for a technologist cannot properly be called educated. A technologist is a śūdra; only one who studies the Vedas may properly be called a learned man (paṇḍita). The duty of a brāhmaṇa is to become learned in the Vedic literature and teach the Vedic knowledge to other brāhmaṇas. In our Kṛṣṇa consciousness movement we are simply teaching our students to become fit brāhmaṇas and Vaiṣṇavas. In our school at Dallas, the students are learning English and Sanskrit, and through these two languages they are studying all our books, such as Śrīmad-Bhāgavatam, Bhagavad-gītā As It Is and The Nectar of Devotion. It is a mistake to educate every student as a technologist. There must be a group of students who become brāhmaṇas. Without brāhmaṇas who study the Vedic literature, human society will be entirely chaotic.
(Sri Caitanya Caritamrta-----1:17:253-----purport).

Among the members of the varṇāśrama institution's social orders (brāhmaṇa, kṣatriya, vaiśya and śūdra), the brāhmaṇa is considered the foremost, for he is theteacher and spiritual master of all the other varṇas. Similarly, among the spiritual orders (brahmacarya, gṛhastha, vānaprastha and sannyāsa), the sannyāsa order is the most elevated. Therefore a sannyāsī is the spiritual master of all the varṇas and āśramas, and a brāhmaṇa is also expected to offer obeisances to a sannyāsī. Unfortunately, however, caste brāhmaṇas do not offer obeisances to a Vaiṣṇava sannyāsī. They are so proud that they do not offer obeisances even to Indian sannyāsīs, what to speak of European and American sannyāsīs. Śrī Caitanya Mahāprabhu, however, expected that even the caste brāhmaṇas would offer respectful obeisances to a sannyāsī because five hundred years ago the social custom was to offer obeisances immediately to any sannyāsī, known or unknown.
(Sri Caitanya Caritamrta-----1:17:265-----purport).

One may argue that since Śaṅkarācārya is an incarnation of Lord Śiva, how is it that he cheated people in this way? The answer is that he did so on the order of his master, the Supreme Personality of Godhead. This is confirmed in the Padma Purāṇa, in the words of Lord Śiva himself:
māyāvādam asac chāstraṁ pracchannaṁ bauddham ucyate
mayaiva kalpitaṁ devi kalau brāhmaṇa-rūpiṇā
brahmaṇaś cāparaṁ rūpaṁ nirguṇaṁ vakṣyate mayā
sarva-svaṁ jagato ’py asya mohanārthaṁ kalau yuge
vedānte tu mahā-śāstre māyāvādam avaidikam
mayaiva vakṣyate devi jagatāṁ nāśa-kāraṇāt
"The Māyāvāda philosophy," Lord Śiva informed his wife Pārvatī, "is impious (asac chāstra). It is covered Buddhism. My dear Pārvatī, in Kali-yuga I assume the form of a brāhmaṇa andteach this imagined Māyāvāda philosophy. In order to cheat the atheists, I describe the Supreme Personality of Godhead to be without form and without qualities. Similarly, in explaining Vedānta I describe the same Māyāvāda philosophy in order to mislead the entire population toward atheism by denying the personal form of the Lord." In the Śiva Purāṇa the Supreme Personality of Godhead told Lord Śiva:
dvāparādau yuge bhūtvā kalayā mānuṣādiṣu
svāgamaiḥ kalpitais tvaṁ ca janān mad-vimukhān kuru
"In Kali-yuga, mislead the people in general by propounding imaginary meanings for the Vedas to bewilder them." These are the descriptions of the Purāṇas.
(Sri Caitanya Caritamrta-----1:7:110-----purport).

In the scriptures it is stated, ṣaṭ-karma-nipuṇo vipro mantra-tantra-viśāradaḥ. A qualified brāhmaṇa must be expert in the occupational duties of a brāhmaṇa. His duties are mentioned as six brahminical engagements. Paṭhana means that a brāhmaṇa must be conversant with the Vedic scriptures. He must also be able to teach others to study the Vedic literatures. This is pāṭhana. He must also be expert in worshiping different deities and in performing the Vedic rituals (yajana). On account of this yajana, the brāhmaṇa, being the head of society, performs all the Vedic rituals for kṣatriyas, vaiśyas and śūdras. This is called yājana, assisting others in performing ceremonies. The remaining two items are dāna and pratigraha. The brāhmaṇa accepts all kinds of contributions (pratigraha) from his followers (namely, the kṣatriyas, vaiśyas and śūdras). But he does not keep all the money. He keeps only as much as required and gives the balance to others in charity (dāna).
(Sri Caitanya Caritamrta-----2:4:87-----purport).

If one becomes a guru, he is automatically a brāhmaṇa. Sometimes a caste guru says that ye kṛṣṇa-tattva-vettā, sei guru haya means that one who is not abrāhmaṇa may become a śikṣā-guru or a vartma-pradarśaka-guru but not an initiator guru. According to such caste gurus, birth and family ties are considered foremost. However, the hereditary consideration is not acceptable to Vaiṣṇavas. The word guru is equally applicable to the vartma-pradarśaka-guru, śikṣā-guru and dīkṣā-guru. Unless we accept the principle enunciated by Śrī Caitanya Mahāprabhu, this Kṛṣṇa consciousness movement cannot spread all over the world. According to Śrī Caitanya Mahāprabhu's intentions, pṛthivīte āche yata nagarādi-grāma sarvatra pracāra haibe mora nāma. Śrī Caitanya Mahāprabhu's cult must be preached all over the world. This does not mean that people should take to His teachings and remain śūdras or caṇḍālas. As soon as one is trained as a pure Vaiṣṇava, he must be accepted as a bona fide brāhmaṇa. This is the essence of Śrī Caitanya Mahāprabhu's instructions in this verse.
(Sri Caitanya Caritamrta-----2:4:128-----purport).

Generally brāhmaṇas and sannyāsīs are very proud of their spiritual positions. Therefore, to cut down their false pride, Śrī Caitanya Mahāprabhu preached Kṛṣṇa consciousness through Rāmānanda Rāya, who was neither a member of the renounced order nor a born brāhmaṇa. Indeed, Śrī Rāmānanda Rāya was a gṛhastha belonging to the śūdra class, yet Śrī Caitanya Mahāprabhu arranged for him to be the master who taught Pradyumna Miśra, a highly qualified brāhmaṇa born in a brāhmaṇa family. Even Śrī Caitanya Mahāprabhu Himself, although belonging to the renounced order, took instruction from Śrī Rāmānanda Rāya. In this way Śrī Caitanya Mahāprabhu exhibited His opulence through Śrī Rāmānanda Rāya. That is the special significance of this incident.
(Sri Caitanya Caritamrta-----3:5:84-----purport).

Śrīla Bhaktivinoda Ṭhākura says in his Amṛta-pravāha-bhāṣya that sannyāsīs in the line of Śaṅkarācārya always think that they have performed all the duties ofbrāhmaṇas and that, furthermore, having understood the essence of the Vedānta-sūtra and become sannyāsīs, they are the natural spiritual masters of all society. Similarly, persons born inbrāhmaṇa families think that because they execute the ritualistic ceremonies recommended in the Vedas and follow the principles of smṛti, they alone can become spiritual masters of society. These highly exalted brāhmaṇas think that unless one is born in a brāhmaṇa family, one cannot become a spiritual master and teach the Absolute Truth. To cut down the pride of these birthright brāhmaṇas and Māyāvādī sannyāsīs, Śrī Caitanya Mahāprabhu proved that a person like Rāmānanda Rāya, although born in a śūdra family and situated in the gṛhastha-āśrama, can become the spiritual master of such exalted personalities as Himself and Pradyumna Miśra. This is the principle of the Vaiṣṇava cult, as evinced in the teachings of Śrī Caitanya Mahāprabhu. A person who knows what is spiritual and what is material and who is firmly fixed in the spiritual position can be jagad-guru, the spiritual master of the entire world. One cannot become jagad-guru simply by advertising oneself as jagad-guru without knowing the essential principles for becoming jagad-guru. Even people who never see what a jagad-guru is and never talk with other people become puffed-up sannyāsīs and declare themselves jagad-gurus. Śrī Caitanya Mahāprabhu did not like this. Any person who knows the science of Kṛṣṇa and who is fully qualified in spiritual life can become jagad-guru. Thus Śrī Caitanya Mahāprabhu personally took lessons from Śrī Rāmānanda Rāya and also sent Pradyumna Miśra, an exalted brāhmaṇa, to take lessons from him.
(Sri Caitanya Caritamrta-----3:5:85-----purport).

The learned brāhmaṇas, expert in Vedic ritualistic performances, were properly regretful, because if one does not develop Kṛṣṇa consciousness, all discharge of religious duties is simply a waste of time and energy. They continued to talk among themselves: "The external energy of Kṛṣṇa is so strong that it can create illusion to overcome even the greatest mystic yogī. Although we expert brāhmaṇas are considered to be the teachers of all other sections of human society, we also have been illusioned by the external energy. Just see how fortunate these women are! They have so devotedly dedicated their lives to the Supreme Personality of Godhead, Kṛṣṇa, that they could easily do what is ordinarily so difficult: they gave up their family connections, which are just like a dark well for the continuation of material miseries." Women in general, being very simple at heart, can very easily take to Kṛṣṇa consciousness, and when they develop love of Kṛṣṇa they can easily get liberation from the clutches of māyā, which are very difficult for even so-called intelligent and learned men to surpass.
(Krsna Book).

According to the Vedic system, charity is given to the brāhmaṇas. It is stated in the Vedic śāstras that only the brāhmaṇas and the sannyāsīs can accept charity. The cowherd men from Vṛndāvana gave the brāhmaṇas cows decorated with golden ornaments and beautiful garlands. The brāhmaṇas are given charity because they are not engaged in any business profession. They are supposed to be engaged in brahminical occupations, as described in the Bhagavad-gītā—namely, they must be very learned and must perform austerity and penances. Not only must they themselves be learned, but they must also teach others. Brāhmaṇas are not meant to be brāhmaṇas alone: they should create other brāhmaṇas also. If a man is found who agrees to become a brāhmaṇa's disciple, he is also given the chance to become a brāhmaṇa. The brāhmaṇa is always engaged in the worship of Lord Viṣṇu. Therefore the brāhmaṇas are eligible to accept all kinds of charity. But if the brāhmaṇas receive excess charity, they are to distribute it for the service of Viṣṇu. In the Vedic scriptures, therefore, one is recommended to give charity to the brāhmaṇas, and by so doing one pleases Lord Viṣṇu and all the demigods.
(Krsna Book).

Reaching the gate of Dvārakā, the brāhmaṇa informed the doorkeeper of his arrival, and the doorkeeper led him to the place where Kṛṣṇa was sitting on a golden throne. Since the brāhmaṇa had the opportunity to be Rukmiṇī’s messenger, he was fortunate enough to see the Supreme Personality of Godhead Kṛṣṇa, the original cause of all causes. A brāhmaṇa is the spiritual teacher of all the social divisions. Lord Śrī Kṛṣṇa, in order to teach everyone the Vedic etiquette of how to respect a brāhmaṇa, immediately got up and offered him His throne. When the brāhmaṇa was seated on the golden throne, Lord Śrī Kṛṣṇa began to worship him exactly as the demigods worship Kṛṣṇa. In this way, He taught everyone that worshiping His devotee is more valuable than worshiping Him.
(Krsna Book).