He's just too old, that's all. I think everyone my age within ten years can SING the preamble to the Constitution, thanks to Schoolhouse Rock!

Sing it with me,

We the people
In order to form a more perfect union
Establish justice, ensure domestic tranquility
Provide for the common defense
Promote the general welfare a-and
Protect the blessings of Liberty
For ourselves and our posterity
Do ordain and esta-a-ablish this Constitution
o-o-of, the United States o-o-o-of America!