Yup, GfS.

An old proverb often heard in spiritual circles:

The fool thinks he knows.
The wise man knows he doesn't.

Or put another way:

The fool thinks he knows a great deal.
The wise man knows that he knows very little (of what's out there to know).

This is why fools have a pat answer and a rock solid opinion for just about everything, and wise men, on the other hand, are willing to admit that they're not sure...and keep inquiring.

The person who confidently asserts, for example, that:

1. There is no God.

or

2. There is only one God and his name is Jehovah.

is engaging in the sort of dogmatic thinking that characterizes a fool, not a wise man. He pretends to have certainty about something which he really knows almost nothing about. What he's really doing is engaging in wishful thinking along the lines of "This is the way I want it to be, therefore this is the way it must be."