If one is simply materially qualified, that becomes the cause of his false prestige and pride, that's all, what to speak of purifying himself. And he . . . bhavanti na śuddhaye. Śuddhaye, śuddhaye means purification, the first purificatory process as stated in the Bhagavad-gītā, amānitvam adambhitvam ahiṁsā (BG 13.8).
Amānitvam—humble and meek. Caitanya Mahāprabhu says, tṛṇād api sunīcena taror api sahiṣṇunā (CC Adi 17.31)—humbler that the blade of grass, and tolerant than the tree.
So these are the qualification, spiritual qualification. So if one becomes falsely proud, then where is his spiritual qualification? Everything is lost, everything gone—immediately. So in spite of his all good qualifications, if he is simply proud, then everything becomes zero.
Of course, not in this country . . . in our country milk is considered to be very nice, nutritious food; but if there is a drop of wine mixed with milk, it is no more pure; it is finished. If it is touched by the lip of the serpent, it is finished—no more.
Similarly, one may have all these qualifications if he becomes brahmin or kṣatriya, or very high class, very aristocratic, all this. That is all right. But if it is simply false prestige, if it is meant simply for showing one's false prestige, then those qualification have no value. And when there is no value, he cannot purify himself, what to speak of purifying his whole family.