Srimad Bhagavatam Canto 11, Chapter 05, Text 05

SB 11.5.5

vipro rajanya-vaisyau va
 hareh praptah padantikam
srautena janmanathapi
 muhyanty amnaya-vadinah
Translation by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
On the other hand, brahmanas, members of the royal order and vaisyas, even after being allowed to approach the lotus feet of the Supreme Lord, Hari, by receiving the second birth of Vedic initiation, can become bewildered and adopt various materialistic philosophies.
Purport by His Divine Grace A. C. Bhaktivedanta Swami Srila Prabhupada: 
It is said that a little knowledge can be very dangerous. Those who are falsely proud of material social status and who thus neglect to perfect their worship of the Personality of Godhead are condemned in this verse. Muhyanty amnaya-vadinah: becoming attracted by the sense gratification of high status within the varnasrama social system, such persons become more attracted to illusory material philosophy than to the Absolute Truth, which is not material. Within the Vedic system, brahmanas, ksatriyas and vaisyas, as mentioned in this verse, are all offered initiation into the Gayatri mantra and are considered twice-born, or highly civilized men. By studying Vedic literature, chanting Vedic mantras, executing ritualistic ceremonies and worshiping the spiritual master and the Personality of Godhead such persons gradually come near to the lotus feet of the Supreme Lord. If one in such an exalted position becomes proud of his status or fascinated by the heavenly material enjoyment that is undoubtedly available to the followers of the varnasrama system, then one so bewildered returns to the illusory material platform of birth and death. Even the highly posted demigods become victims of maya’s enticement, as described in the first verse of Srimad-Bhagavatam: muhyanti yat surayah.
In order to justify their illusory desire to enjoy dead matter, such foolish persons condemn themselves by minimizing the necessity of worshiping the Personality of Godhead (avajananti) and falsely try to give equal importance to the karma-kanda section of the Vedas, which awards heavenly sense gratification in exchange for the performance of prescribed ritualistic ceremonies. Such bogus rationalizers are described in Bhagavad-gita (2.42):
yam imam puspitam vacam
 pravadanty avipascitah
veda-vada-ratah partha
 nanyad astiti vadinah
“Men of small knowledge are very much attached to the flowery words of the Vedas, which recommend various fruitive activities for elevation to the heavenly planets, resultant good birth, power and so on. Being desirous of sense gratification and opulent life, they say that there is nothing more than this.”
Srila Prabhupada’s purport to this verse of Bhagavad-gita gives a clear picture of the offensive class of men described therein. “People in general are not very intelligent, and due to their ignorance they are most attached to the fruitive activities recommended in the karma-kanda portions of the Vedas. They do not want anything more than sense gratificatory proposals for enjoying life in heaven, where wine and women are available and material opulence is very common. In the Vedas many sacrifices are recommended for elevation to the heavenly planets, especially the jyotistoma sacrifices. In fact, it is stated that anyone desiring elevation to heavenly planets must perform these sacrifices, and men with a poor fund of knowledge think that this is the whole purpose of Vedic wisdom. It is very difficult for such inexperienced persons to be situated in the determined action of Krsna consciousness. As fools are attached to the flowers of poisonous trees without knowing the results of such attractions, similarly, unenlightened men are attracted by such heavenly opulence and the sense enjoyment thereof.
“In the karma-kanda sections of the Vedas it is said that those who perform the four monthly penances become eligible to drink the soma-rasa beverage to become immortal and happy forever. Even on this earth some are very eager to have soma-rasa to become strong and fit to enjoy sense gratification. Such persons have no faith in liberation from material bondage, and they are very much attached to the pompous ceremonies of Vedic sacrifices. They are generally sensual, and they do not want anything other than the heavenly pleasures of life. It is understood that there are gardens called Nandana-kanana, in which there is good opportunity for association with angelic, beautiful women and having a profuse supply of soma-rasa wine. Such bodily happiness is certainly sensual; therefore there are those who are purely attached to material, temporary happiness, as lords of the material world.”
The significant point in this verse is that such bewildered materialists who have become attracted to the materialistic portions of the Vedas (muhyanty amnaya-vadinah) desire to ignore the supreme proprietorship of the Personality of Godhead, who is the supreme enjoyer (bhoktaram yajña-tapasam). And at the same time they wish to preserve their exalted status as followers of the Vedic principles. Such duplicitous persons take shelter of materialistic philosophers, such as Jaimini, who deny the existence of God as a tangible principle (isvarasiddheh) and therefore recommend material fruitive activities as the highest knowable truth. Such so-called Vedic philosophers amount to little more than polished atheists and are therefore understood to be anisvara-vadinah, or those who preach against the supremacy of the Supreme Personality of Godhead. Although foolish materialistic followers of the varnasrama system desire to maintain their exalted status as Aryans, or twice-born men, and at the same time neglect the Personality of Godhead, it is clearly stated in the Bhagavatam (11.5.3), sthanad bhrastah patanty adhah: such persons inevitably fall from their position into a degraded condition of life. As confirmed in this verse by the word muhyanti, they fall into the darkness of ignorance. Sometimes such pompous persons even present themselves as gurus. However, Bhaktisiddhanta Sarasvati Thakura has pointed out that they are actually laghu, or flimsy, rather than guru, or heavy with Vedic knowledge. It is one’s ultimate duty to oneself (svartha-gati) and to the Personality of Godhead to give up all materialistic activities characterized by karma and jñana and surrender fully at the lotus feet of the Lord. Only the most unfortunate person will consider that there is a higher pleasure than ecstatic surrender at the lotus feet of Gokulananda, the Personality of Godhead.
Srimad Bhagavatam Canto 11, Chapter 05, Text 04
Srimad Bhagavatam Canto 11, Chapter 05, Text 06