2.
The Discourse on Happiness
250.
"There are these three feelings, monks.
Which three?
Pleasant feeling, unpleasant feeling, neither-unpleasant-nor-pleasant feeling -
these, monks, are the three feelings."
"Whether pleasant or unpleasant, together with neither-unpleasant-nor-pleasant;
Internally and externally, whatever is felt.
"Having known this as suffering, subject to deception, disintegrating;
Touching again and again, seeing the fall, thus one becomes dispassionate therein." The second.