Doubt Reversed

I was given a couple of books for Christmas and I am now getting around to reading them. I am unusual in a way, when I am reading and I come upon something that strikes me as insightful I highlight the passage and then note the highlight in the book for reference later. Let me quote to you something I read that caught my attention;

"A man was meant to be doubtful about himself, but undoubting about the truth; this has been exactly reversed. Nowadays the part of a man that a man does assert is exactly the part he ought not to assert—himself. The part he doubts is exactly the part he ought not to doubt — The Divine Reason."

—Taken from Orthodoxy by G. K. Chesterton.

Have we truly reversed the logic of doubt?

Blessings:
BluesMan
"cogito ergo sum"