Mahabharata 3.29.23
काले मृदुर्यो भवति काले भवति दारुणःस वै सुखमवाप्नोति लोकेऽमुष्मिन्निहैव च
kāle mṛduryo bhavati kāle bhavati dāruṇaḥsa vai sukhamavāpnoti loke'muṣminnihaiva ca
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book