Well, look here, supposing you do go off and get lost in the 50th century or something... How are you going to get back?
9 seconds sound clip from the The Time Machine (1960) movie soundboard.
You can hear this line at 00:15:24 in the Blu-ray version of the movie.
Quote context
[...]
- All right, suppose what you say is true.
- What do you expect us to do with such a contraption?
- For my part, I intend taking a journey into the future.
- Or perhaps the doctor would volunteer to go?
- That's a risk I'm prepared to take.
- Now, the question I want to put to you is this...
- Yes. Have you thought of the commercial possibilities?
[...]