Professor Frink and Homer in “The Wizard of Evergreen Terrace”

Professor Frink

And these should give you the groundings you'll need in thermodynamics, hyperdmathematics, and of course, microbcalifragilistics.

Homer

Look I just want to know how to invent things, tell me.

Professor Frink

All you have to do is think of things that people need, but which don't exist yet.

Homer

You mean like an electric blanket-mobile?

Professor Frink

Well, possibly. Or you could take something that already exists and find a new use for it. Like...

Homer

Hamburger earmuffs.

Professor Frink

Well, I suppose that would qualify.

Homer

Thanks, sucker!