Based on the way he formulated his arguments, one could tell that he was a simpleton.

This poor simpleton has been robbed of four gold pieces. Take him, therefore, and throw him into prison.

Well, did you manage to fool this simpleton?

This one is a real simpleton, for sure. And he's a president.

First we need to figure out how to fool this simpleton.

The most difficult character in comedy is that of the fool, and he must be no simpleton that plays the part.