Joy

UNDERSTANDING, n.  A cerebral secretion that enables one having it to know a house from a horse by the roof on the house.  Its nature and laws have been exhaustively expounded by Locke, who rode a house, and Kant, who lived in a horse.

His understanding was so keen

That all things which he'd felt, heard, seen

He could interpret without fail

If he was in our out of jail.

He wrote of Inspiration's call

Deep disquisitions on them all,

Then, pent at last in an asylum,

Performed the service to compile 'em.

So great a writer, all men swore,

They never had not read before.

Jorrock Wormley.