What specific arguments or dualistic explanations did the author engage in before meeting Sai?

While Chapter 2 describes the author's initial nature as being "prone to argumentation" and warns against engaging in "dualistic explanations," the provided excerpts do not offer any specific examples of the arguments he made. The text paints a picture of his character, stating he was "mischievous, talkative, cynical, and critical," and "always proud of his own wisdom." However, it speaks in general terms about his tendencies rather than recounting a particular debate or dualistic theory he espoused. The focus in Chapter 2 is on his general disposition, not specific instances of his past arguments.