“Bhikkhus, whatever ascetics or brahmins in the past fully awakened to things as they truly are, all of them fully awakened to the Four Noble Truths as they truly are. Whatever ascetics or brahmins in the future fully awaken to things as they truly are, all of them will fully awaken to the Four Noble Truths as they truly are. Whatever ascetics or brahmins at present fully awaken to things as they truly are, all of them fully awaken to the Four Noble Truths as they truly are.
What are the four? The Noble Truth of |suffering::discomfort, unpleasantness, discontentment, dissatisfaction, stress, pain, disease, i.e. mild or intense suffering [dukkha]|, the Noble Truth of the |arising of suffering::source of stress, appearance of discomfort [dukkhasamudaya]|, the Noble Truth of the |ending of suffering::ending of discontentment, cessation of distress [dukkhanirodha]|, the Noble Truth of the |way of practice leading to the ending of suffering::i.e. the noble eightfold path [dukkhanirodhagāmī]|. Bhikkhus, whatever ascetics or brahmins in the past fully awakened to things as they truly are, all of them fully awakened to these Four Noble Truths as they truly are. Whatever ascetics or brahmins in the future fully awaken to things as they truly are, all of them will fully awaken to these Four Noble Truths as they truly are. Whatever ascetics or brahmins at present fully awaken to things as they truly are, all of them fully awaken to these Four Noble Truths as they truly are.
Therefore, bhikkhus, effort should be made to |fully understand::understand in principle, then discern in each moment and then experientially penetrate|: ‘This is suffering’;
effort should be made to fully understand: ‘This is the arising of suffering’;
effort should be made to fully understand: ‘This is the ending of suffering’;
effort should be made to fully understand: ‘This is the way of practice leading to the ending of suffering.’”