Prabhupāda:
- yatas tataś copaninye
- nyāyato 'nyāyato dhanaṁ
- babhārāsyāḥ kuṭumbinyāḥ
- kuṭumbaṁ manda-dhīr ayam
- (SB 6.1.66)
So this is the beginning of saṁsāra. So there is attraction between man and woman, and as soon as the attraction becomes little intimate, they unite. Then they have children. Then they require money, apartment, so many things. This man became sinful. He gave up his real wife, married wife, coming from very good family, but he became attracted with that śūdrāṇī, fourth class. Śūdra means fourth class, worker class. Brāhmaṇa, kṣatriya, vaiśya, śūdra. So śūdra women, they are not chaste. Some of them are practically professional prostitute. But that is not in higher caste family—brāhmaṇa, kṣatriya, vaiśya. But at the present moment it is very difficult to distinguish who is brāhmaṇa and who is śūdra. But formerly this is the system of Vedic civilization—ideal character, ideal behavior of the brāhmaṇa; less, little less, kṣatriya; little less, vaiśya; and less than the vaiśya, the śūdra; and less than the śūdras are called caṇḍālas. First class, second class, third class, fourth class, and then fifth class.