The Essence of Polity of Kāmandaka 2.10

Kāmandakīya Nītisāra 2.10

varṇāḥ sarvāśramāścaiva vidyāsvāṃsu pratiṣṭhitāḥ
īkṣaṇādrakṣaṇāttāsāṃ taddharmmasyāṃśabhāṅnṛpaḥ