Cogito Ergo Sum Puns

The horse says, "I don't think so," then disappears into nothing.

This is the point in time when all the philosophy students in the audience begin to giggle, as they are familiar with the philosophical proposition of Cogito ergo sum, or I think, therefore, I am. The classic philosophy put forward by René Descartes.

But to explain the concept aforehand would be putting Descartes before the horse.

The philosopher pig is approached by a young piglet. The piglet asks how he is so smart. The philosopher pig replies "Cogito ergo sum, I think, therefor I ham"