The only bit of logic-based public bathroom humor I know is: the difference between men and women is that between the statement [P and not Q] and the statement [Q and not P].

Uncertainty is the only certainty there is, and knowing how to live with insecurity is the only security

Mathematics is no more computation than typing is literature.

Innumeracy and pseudoscience are often associated, in part because of the ease with which mathematical certainty can be invoked, to bludgeon the innumerate into a dumb acquiescence.

Mathematicians are a bit like the laconic Vermonter who, when asked if he's lived in the state his whole life, replies, "Not yet."

So many see themselves as aggrieved; so few see themselves as aggrievers.

I think, therefore I laugh.