Manava Dharmashastra 7.160

Manvarthamuktāvalī 7.160

sarvaṃ paraprārthanādisādhyaṃ duḥkhahetuḥ| sarvamātmādhīnaṃ sukhahetuḥ| etatsukhaduḥkhayoḥ kāraṇaṃ jānīyāt|