Answer the question: What is the point of the passage?

Take some time and do it.

Imagine your answer was this:

The point of the passage is that a comprehensive history of critical thinking is impossible. The desire to think better, label some thinking as good, and label other thinking as bad seems to be a human universal. History requires picking out key events. It is too easy to pick out events associated with one culture as the history of critical thinking. Rather than offering a history that offers insight into critical thinking, it offers a history intended to praise or criticize a culture. Equally bad is that this cultural emphasis can cause us to lose emphasis on the insight about thinking that is the target of the history. However instead of using a history of critical thinking to focus on what it says about the culture we can instead focus on key events without cultural praise or criticism.