Mahabharata 12.26.22

दुःखमेवास्ति न सुखं तस्मात्तदुपलभ्यतेतृष्णार्तिप्रभवं दुःखं दुःखार्तिप्रभवं सुखम्

duḥkhamevāsti na sukhaṃ tasmāttadupalabhyatetṛṣṇārtiprabhavaṃ duḥkhaṃ duḥkhārtiprabhavaṃ sukham

Our plain-language meaning of this verse is waiting for scholar review.