Quizmaster: Jolly good! Well now Madam your first question for the blow on the head this evening is: Which great opponent of Cartesian dualism resists the reduction of psychological phenomena to a physical state and insists there is no point of contact between the extended and the unextended?

Ratbag: I don’t know that.

Quizmaster: Well – have a guess!

Ratbag: Oh… Henri Bergson?

Quizmaster: …is the correct answer! (Piano chords)

Ratbag: Ooh, that was lucky. I never even heard of him.