Just saw you post after I posted mine and just had to smile.
It's like we are talking about 2 different men.
He's very sane. He's just overly optimistic. Foolish and sane are definitely not mutually exclusive.
And I mean reasonable in the sense of being capable of rational thought (admit it...you've agreed with him at least a few times :D ), and not being excessive or extreme (which is one of the things many of us criticize him for...If anything, he's TOO reasonable, and TOO willing to compromise, and TOO moderate).