Sabbasavasutta 11.1

11.1

So ‘idaṃ dukkhan’ti yoniso manasi karoti, ‘ayaṃ dukkhasamudayo’ti yoniso manasi karoti, ‘ayaṃ dukkhanirodho’ti yoniso manasi karoti, ‘ayaṃ dukkhanirodhagāminī paṭipadā’ti yoniso manasi karoti.

They rationally apply the mind: ‘This is suffering’ … ‘This is the origin of suffering’ … ‘This is the cessation of suffering’ … ‘This is the practice that leads to the cessation of suffering’.