You never know. Knowledge is power.
2 seconds sound clip from Longstreet (1971) - Wednesday's Child sitcom.
You can hear this line at 00:00:28.762 in the Blu-ray version of the TV Series.
Quote context
[...]
- Hey, where'd you learn to fight like that?
- Drinking tea from an empty cup.
- Wait, wait, wait. What do you mean, we? Hmm?
- You never know. Knowledge is power.
- The day I have to start running a sewing machine for a living, I can...
- Well, you'll have to admit, it's one of a kind.
- I'm not so sure of that. I think my grandmother owned one just like it.
- Ah, Nikki. I think I found the problem. The wheel's busted.
- Nikki? Put the dog in the other room.
- Pax, no. Pax, no. Pax, get inside. Get inside. No.
[...]