Never mind. Never mind. You may know algebra, son...

3 seconds sound clip from the 'Twas the Night Before Christmas (1974) movie soundboard.

You can hear this line at 00:10:57.207 in the Blu-ray version of the movie.

Quote context

[...]

- A song? When the hands come together like this?

- What's the matter with you? Do you wanna wake everyone up?

- That's pretty neat. Does it work on the gear-and-pinion principle, or an AC synchronous motor?

- Well, it's more of a... A gear what? Synchronous who?

- Ever since Copernicus, Dad, it was known that...

- Never mind. Never mind. You may know algebra, son...

- But this time, the whole town's counting on this clock.

- Fellow citizens, we are gathered on this auspicious occasion to honor a distinguished gentleman, whose inspired and consummate excellence in the craft of chronometric creation has... Oh, heck, he made one whale of a clock. Mr. Joshua Trundle!

- And now, Mr. Trundle, if you will start your magnificent clock and its song that will make Santa Claus our friend again.

- With pleasure.

[...]