This sentence cannot be punctuated. The but relation is here between incongruous thoughts; and therefore the sentence must be mended, which can be done by making it like No. 10-2, omitting “that.”
No amount of usage, even among good writers, can justify the absence of commas in No. 10-1, or the construction of No. 10-3.
The discussion of these sentences emphasizes the necessity for observing the meaning of language as expressed by its grouping and by the relation of one group to another.
Additional light will be thrown upon some of the relations already discussed if we consider them from another viewpoint, as we shall do in the next chapter.
EXAMPLES
Note.—As the principles set forth in Chapters I and II will be discussed more in detail in succeeding chapters, the following examples are given as general illustrations:
1. They think as I do.
2. They think, as I do, that you are wrong.
3. Far below, the mill was heard singing merrily.