[294] Furthermore, bhikkhus, a bhikkhu dwells contemplating dhammas (dhamma) in dhammas with respect to the four noble truths (ariyasacca). And how, bhikkhus, does a bhikkhu dwell contemplating dhammas in dhammas with respect to the four noble truths? Here, bhikkhus, a bhikkhu knows as it really is (yathābhūta): 'This is suffering (dukkha)'; he knows as it really is: 'This is the origin (samudaya) of suffering'; he knows as it really is: 'This is the cessation (nirodha) of suffering'; he knows as it really is: 'This is the way of practice leading to the cessation of suffering.'
And what, bhikkhus, is the noble truth of suffering? Birth (jāti) is suffering; aging (jarā) is suffering; death (maraṇa) is suffering; sorrow, lamentation, pain, grief, and despair (soka-parideva-dukkha-domanassa-upāyāsa) are suffering; association with what is unloved is suffering; separation from what is loved is suffering; not to obtain what one wishes for — that too is suffering; in brief, the five aggregates subject to clinging (pañcupādānakkhandhā) are suffering.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.