How should I understand this "that" clause?
The following sentence is from an article of Harry Frankfurt who is a professor from Princeton University:
It must be part of the point of saying that humbug is "short of lying," that while it has some of the distinguishing characteristics of lies, there are others that it lacks.
How should I understand the second "that" (in bold) here? Does it refer to "it" in the sentence or is it an object of the word "saying"? How should I understand this sentence?
Solution 1:
It's a simple Extraposition.
However, it's not correct to say that the boldfaced that refers to it in the sentence. In fact, neither that nor it has any reference at all. They're both function words; that is a complementizer which introduces a tensed subject Complement clause, while it is a dummy subject introduced by Extraposition to keep the subject slot open.
This sentence comes from something like the following, with all pronouns expanded:
- That while humbug has some of the distinguishing characteristics of lies, there are other characteristics that humbug lacks must be part of the point of saying that humbug is "short of lying".
This is even less clear, which is why Extraposition moves the entire subject
- that while humbug has some of the distinguishing characteristics of lies, there are other characteristics that humbug lacks
(leaving it behind as the the dummy subject) to the end of the verb phrase
- must be part of the point of saying that humbug is "short of lying"
where it can be parsed more easily. Well, somewhat more easily, anyway. This is a good place to use the fact that, and to emphasize the contrast between some and others to make the parallels clear.
- The fact that humbug has some of the distinguishing characteristics of lies, but lacks others, must be part of the point of saying that humbug is "short of lying".
Solution 2:
"That" attaches to "the point" here. So the reason for the saying that humbug is short of lying is that it shares some but not all the characteristics of lies.