[635] Bhikkhus, further, the Teacher teaches the Dhamma to his disciples, being compassionate, seeking their welfare, out of compassion: "This is for your welfare; this is for your happiness." Some of his disciples do not wish to hear, do not lend an ear, do not apply their minds (citta) to understanding, and they turn aside and proceed contrary to the Teacher's instruction. But some disciples do wish to hear, lend an ear, apply their minds to understanding, and do not turn aside and proceed contrary to the Teacher's instruction. Therein, bhikkhus, the Tathāgata is neither pleased, nor does he experience pleasure; nor is he displeased, nor does he experience displeasure. Having avoided both of these—pleasure and displeasure—he dwells in equanimity (upekkhā), mindful and clearly comprehending. This, bhikkhus, is called the second establishment of mindfulness (satipaṭṭhāna) that the Noble One cultivates, cultivating which the Teacher is worthy to instruct a group.
English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.