Brooks, Bryson, Curtin and Descartes. What do these guys have in common?

Beats the hell out of me, but, they're all here. Chalk this post up to something that made me smile this morning.

Note: More about Descartes, Brooks, Curtin, Bryson and Poetry. The beer gets throw in for free.

Edit: Got the first link wrong to begin with sorry about that. All better now.