"Okay, boys. Tonight's homework. Algebra: x to the nth + y to the nth = z to the nth. Well, you're never gonna use that, are you? Imperialism and the First World War. What was done is done. No point thinking about it now. German, French, Spanish. Ja, ja, oui, oui, si, si. It's nonsense. Everyone speaks English anyway. And if they don't, they ought to."