SB 12.3.23

yaśasvino mahā-śīlāḥ
 svādhyāyādhyayane ratāḥ
āḍhyāḥ kuṭumbino hṛṣṭā
 varṇāḥ kṣatra-dvijottarāḥ
Synonyms: 
yaśasvinaḥ — eager for glory; mahā-śīlāḥ — noble; svādhyāya-adhyayane — in study of the Vedic literature; ratāḥ — absorbed; āḍhyāḥ — endowed with opulence; kuṭumbinaḥ — having large families; hṛṣṭāḥ — joyful; varṇāḥ — the four classes of society; kṣatra-dvija-uttarāḥ — represented mostly by the kṣatriyas and brāhmaṇas.
Translation: 
In the Dvāpara age people are interested in glory and are very noble. They devote themselves to the study of the Vedas, possess great opulence, support large families and enjoy life with vigor. Of the four classes, the kṣatriyas and brāhmaṇas are most numerous.