It is therefore often convenient to make the division into morphemic segments first in the case of those utterances and parts of utterances in which the difference in adequacy among various alternative segmentations is extreme. The less obvious choices of segmentation can then be decided with the help of the classes of morphemic segments which have already been set up. Even then, new data may lead us to rescind some of our previous segmentations in favor of alternative ones which pattern better with the new data.
- Harris (1951), a pag.162, n.13

It would be possible to add the requirement that each morphemic segment consist of a whole phoneme or an unbroken succession of whole phonemes […].
- Harris (1951), a pag.164, n.14

The vast majority of morphemic segments, in most languages, consist of phonemes in immediate succession: e.g. /ruwm/ 'room', /Ər/ '-er'.
- Harris (1951), a pag.165

The operation of 12.23 [Lower Limit for Number of Morphemic Segments in an Utterance] assures that the morphemic segments will be such elements in terms of which convenient distributional statements can be made. For each morphemic segment which is recognized there will be others having partially similar distribution. These new segments of utterances therefore include in their constitution some of the limitations of occurrence of the phonological segments; and their distribution (i.e. their privileges of occurrence) within long utterances can be more easily stated than that of the phonological elements. This does not mean that these segments are those elements whose distribution within utterances can be stated most simply.
- Harris (1951), a pag.172

If each utterance is correlated with the social situation, i.e. the cultural environment and the interpersonal relations, in which it occurs, it will be possible to correlate the morphemic segments of the utterance with features of the social situation. In some case this is rather simple, as in correlating the segment 'five' with a feature of the social situation in such utterances as 'It’s five o’clock now', 'I got some three-by-fives for you'. In other cases it may be quite complicated, as in correlating 'five' with a feature of the social situation in such utterances as 'Mr. Five-by-five, I’ll be back in five or ten minutes'.
- Harris (1951), a pag.172