The Laws of Thermodynamics
You just never know what might come up in conversation sometimes. This did over dinner with friends tonight.
In this house we obey the laws of thermodynamics.
— Homer Simpson
Here's the YouTube clip in case you'd like to hear it for yourself. The occasion, of course — I say "of course" because virtually everyone else seems to know this scene already — is Homer's displeasure with Lisa for building a perpetual-motion machine.
We thought it sounded even more masterly and authoritative to hear Homer say it in German (YouTube clip) but, alas, we couldn't quite make out all of it for this transcript. If anyone can supply the verb, please do.
In diesen haus wir _____ die gesetze der Thermodynamik.
— Homer Simpson
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[update added 20 April 2010:]
The consensus from several sources is that the missing verb is "gehorchen", so that Homer says
In diesen Haus gehorchen die Gesetze der Thermodynamik.