雜阿含470經
如是我聞：一時，佛住王舍城迦蘭陀竹園。爾時、世尊告諸比丘：「愚癡無聞凡夫，生苦受、樂受，不苦不樂受，多聞聖弟子，亦生苦受、樂受，不苦不樂受。諸比丘！凡夫、聖人， 有何差別」？諸比丘白佛；「世尊是法根，法眼，法依，善哉世尊！唯願廣說，諸比丘聞已，當受奉行」。
佛告諸比丘：「諦聽，善思，當為汝說。諸比丘！愚癡無聞凡夫，身觸生諸受，增諸苦痛，乃至奪命，愁憂稱怨，啼哭號呼，心生狂亂。當於爾時，增長二受：若身受，若心受。譬如士夫身被雙毒箭，極生苦痛，愚癡無聞凡夫，亦復如是、增長二受──身受、心受，極生苦痛。所以者何？以彼愚癡無聞凡夫不了知故，於諸五欲生樂受觸，受五欲樂，受五欲樂故，為貪使所使。苦受觸故，則生瞋恚，生瞋恚故，為恚使所使。於此二受，若集、若滅、若味、若患、若離不如實知，不如實知故，生不苦不樂受，為癡使所使。為樂受所繫終不離，苦受所繫終不離，不苦不樂受所繫終不離。云何繫？謂為貪、恚、癡所繫，為生老病死、憂悲惱苦所繫。
多聞聖弟子，身觸生苦受，大苦逼迫，乃至奪命，不起憂悲稱怨，啼哭號呼，心亂發狂。當於爾時，唯生一受，所謂身受，不生心受。譬如士夫被一毒箭，不被第二毒箭。當於爾時，唯生一受，所謂身受，不生心受。為樂受觸，不染欲樂，不染欲樂故，於彼樂受、貪使不使；於苦觸受，不生瞋恚，不生瞋恚故，恚使不使。於彼二使，集、滅、味、患、離如實知，如實知故，不苦不樂受、癡使不使。於彼樂受解脫不繫，苦受，不苦不樂受解脫不繫。於何不繫？謂貪、恚、癡不繫，生老病死、憂悲惱苦不繫」。
爾時、世尊即說偈言：「多聞於苦、樂，非不受覺知，彼於凡夫人，其實大有間。 樂受不放逸，苦觸不增憂，苦、樂二俱捨，不順亦不違。比丘勤方便，正智不傾動，於此一切受，黠慧能了知。了知諸受故，現法盡諸漏，身死不墮數，永處般涅槃」。
佛說此經已，諸比丘聞佛所說，歡喜奉行。
雜阿含470經----36:6
"Monks, an uninstructed run-of-the-mill person feels feelings of pleasure, feelings of pain, feelings of neither-pleasure-nor-pain. A well-instructed disciple of the noble ones also feels feelings of pleasure, feelings of pain, feelings of neither-pleasure-nor-pain. So what difference, what distinction, what distinguishing factor is there between the well-instructed disciple of the noble ones and the uninstructed run-of-the-mill person?"
"For us, lord, the teachings have the Blessed One as their root, their guide, & their arbitrator. It would be good if the Blessed One himself would explicate the meaning of this statement. Having heard it from the Blessed One, the monks will remember it."
"In that case, monks, listen & pay close attention. I will speak."
"As you say, lord," the monks responded.
The Blessed One said, "When touched with a feeling of pain, the uninstructed run-of-the-mill person sorrows, grieves, & laments, beats his breast, becomes distraught. So he feels two pains, physical & mental. Just as if they were to shoot a man with an arrow and, right afterward, were to shoot him with another one, so that he would feel the pains of two arrows; in the same way, when touched with a feeling of pain, the uninstructed run-of-the-mill person sorrows, grieves, & laments, beats his breast, becomes distraught. So he feels two pains, physical & mental.
"As he is touched by that painful feeling, he is resistant. Any resistance-obsession with regard to that painful feeling obsesses him. Touched by that painful feeling, he delights in sensual pleasure. Why is that? Because the uninstructed run-of-the-mill person does not discern any escape from painful feeling aside from sensual pleasure. As he is delighting in sensual pleasure, any passion-obsession with regard to that feeling of pleasure obsesses him. He does not discern, as it actually is present, the origination, passing away, allure, drawback, or escape from that feeling. As he does not discern the origination, passing away, allure, drawback, or escape from that feeling, then any ignorance-obsession with regard to that feeling of neither-pleasure-nor-pain obsesses him.
"Sensing a feeling of pleasure, he senses it as though joined with it. Sensing a feeling of pain, he senses it as though joined with it. Sensing a feeling of neither-pleasure-nor-pain, he senses it as though joined with it. This is called an uninstructed run-of-the-mill person joined with birth, aging, & death; with sorrows, lamentations, pains, distresses, & despairs. He is joined, I tell you, with suffering & stress.
"Now, the well-instructed disciple of the noble ones, when touched with a feeling of pain, does not sorrow, grieve, or lament, does not beat his breast or become distraught. So he feels one pain: physical, but not mental. Just as if they were to shoot a man with an arrow and, right afterward, did not shoot him with another one, so that he would feel the pain of only one arrow. In the same way, when touched with a feeling of pain, the well-instructed disciple of the noble ones does not sorrow, grieve, or lament, does not beat his breast or become distraught. He feels one pain: physical, but not mental.
"As he is touched by that painful feeling, he is not resistant. No resistance-obsession with regard to that painful feeling obsesses him. Touched by that painful feeling, he does not delight in sensual pleasure. Why is that? Because the well-instructed disciple of the noble ones discerns an escape from painful feeling aside from sensual pleasure. As he is not delighting in sensual pleasure, no passion-obsession with regard to that feeling of pleasure obsesses him. He discerns, as it actually is present, the origination, passing away, allure, drawback, and escape from that feeling. As he discerns the origination, passing away, allure, drawback, and escape from that feeling, no ignorance-obsession with regard to that feeling of neither-pleasure-nor-pain obsesses him.
"Sensing a feeling of pleasure, he senses it disjoined from it. Sensing a feeling of pain, he senses it disjoined from it. Sensing a feeling of neither-pleasure-nor-pain, he senses it disjoined from it. This is called a well-instructed disciple of the noble ones disjoined from birth, aging, & death; from sorrows, lamentations, pains, distresses, & despairs. He is disjoined, I tell you, from suffering & stress.
"This is the difference, this the distinction, this the distinguishing factor between the well-instructed disciple of the noble ones and the uninstructed run-of-the-mill person."
The discerning person, learned,
doesn't sense a (mental) feeling of pleasure or pain:
This is the difference in skillfulness
between the sage & the person run-of-the-mill.
For a learned person
who has fathomed the Dhamma,
clearly seeing this world & the next,
desirable things don't charm the mind,
undesirable ones bring no resistance.
His acceptance
& rejection are scattered,
gone to their end,
do not exist.
Knowing the dustless, sorrowless state,
he discerns rightly,
has gone, beyond becoming,
to the Further Shore.
http://www.accesstoinsight.org/tipitaka ... .than.html
"For us, lord, the teachings have the Blessed One as their root, their guide, & their arbitrator. It would be good if the Blessed One himself would explicate the meaning of this statement. Having heard it from the Blessed One, the monks will remember it."
"In that case, monks, listen & pay close attention. I will speak."
"As you say, lord," the monks responded.
The Blessed One said, "When touched with a feeling of pain, the uninstructed run-of-the-mill person sorrows, grieves, & laments, beats his breast, becomes distraught. So he feels two pains, physical & mental. Just as if they were to shoot a man with an arrow and, right afterward, were to shoot him with another one, so that he would feel the pains of two arrows; in the same way, when touched with a feeling of pain, the uninstructed run-of-the-mill person sorrows, grieves, & laments, beats his breast, becomes distraught. So he feels two pains, physical & mental.
"As he is touched by that painful feeling, he is resistant. Any resistance-obsession with regard to that painful feeling obsesses him. Touched by that painful feeling, he delights in sensual pleasure. Why is that? Because the uninstructed run-of-the-mill person does not discern any escape from painful feeling aside from sensual pleasure. As he is delighting in sensual pleasure, any passion-obsession with regard to that feeling of pleasure obsesses him. He does not discern, as it actually is present, the origination, passing away, allure, drawback, or escape from that feeling. As he does not discern the origination, passing away, allure, drawback, or escape from that feeling, then any ignorance-obsession with regard to that feeling of neither-pleasure-nor-pain obsesses him.
"Sensing a feeling of pleasure, he senses it as though joined with it. Sensing a feeling of pain, he senses it as though joined with it. Sensing a feeling of neither-pleasure-nor-pain, he senses it as though joined with it. This is called an uninstructed run-of-the-mill person joined with birth, aging, & death; with sorrows, lamentations, pains, distresses, & despairs. He is joined, I tell you, with suffering & stress.
"Now, the well-instructed disciple of the noble ones, when touched with a feeling of pain, does not sorrow, grieve, or lament, does not beat his breast or become distraught. So he feels one pain: physical, but not mental. Just as if they were to shoot a man with an arrow and, right afterward, did not shoot him with another one, so that he would feel the pain of only one arrow. In the same way, when touched with a feeling of pain, the well-instructed disciple of the noble ones does not sorrow, grieve, or lament, does not beat his breast or become distraught. He feels one pain: physical, but not mental.
"As he is touched by that painful feeling, he is not resistant. No resistance-obsession with regard to that painful feeling obsesses him. Touched by that painful feeling, he does not delight in sensual pleasure. Why is that? Because the well-instructed disciple of the noble ones discerns an escape from painful feeling aside from sensual pleasure. As he is not delighting in sensual pleasure, no passion-obsession with regard to that feeling of pleasure obsesses him. He discerns, as it actually is present, the origination, passing away, allure, drawback, and escape from that feeling. As he discerns the origination, passing away, allure, drawback, and escape from that feeling, no ignorance-obsession with regard to that feeling of neither-pleasure-nor-pain obsesses him.
"Sensing a feeling of pleasure, he senses it disjoined from it. Sensing a feeling of pain, he senses it disjoined from it. Sensing a feeling of neither-pleasure-nor-pain, he senses it disjoined from it. This is called a well-instructed disciple of the noble ones disjoined from birth, aging, & death; from sorrows, lamentations, pains, distresses, & despairs. He is disjoined, I tell you, from suffering & stress.
"This is the difference, this the distinction, this the distinguishing factor between the well-instructed disciple of the noble ones and the uninstructed run-of-the-mill person."
The discerning person, learned,
doesn't sense a (mental) feeling of pleasure or pain:
This is the difference in skillfulness
between the sage & the person run-of-the-mill.
For a learned person
who has fathomed the Dhamma,
clearly seeing this world & the next,
desirable things don't charm the mind,
undesirable ones bring no resistance.
His acceptance
& rejection are scattered,
gone to their end,
do not exist.
Knowing the dustless, sorrowless state,
he discerns rightly,
has gone, beyond becoming,
to the Further Shore.
http://www.accesstoinsight.org/tipitaka ... .than.html