Mahabharata 14.35.27
चातुर्विद्यं तथा वर्णांश्चतुरश्चाश्रमान्पृथक्धर्ममेकं चतुष्पादं नित्यमाहुर्मनीषिणः
cāturvidyaṃ tathā varṇāṃścaturaścāśramānpṛthakdharmamekaṃ catuṣpādaṃ nityamāhurmanīṣiṇaḥ
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book