Mahabharata 5.8.35

सर्वं दुःखमिदं वीर सुखोदर्कं भविष्यतिनात्र मन्युस्त्वया कार्यो विधिर्हि बलवत्तरः

sarvaṃ duḥkhamidaṃ vīra sukhodarkaṃ bhaviṣyatinātra manyustvayā kāryo vidhirhi balavattaraḥ

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