Tip o' the hat to Sam Waltz on the GenX-Ms email list for this one. A sample:
Gauss can get to the other side of a Möbius strip.
Gauss can colour any map using only one colour.
There are no postulates, only theorems Gauss believes are unworthy of a proof.
Gauss disproved Godel's Incompleteness Theorem by exhaustion.
The Wikipedia article on Gauss is here.