When you're my age and you make as many tragic errors as I do, it is a different tune that you will sing.

8 seconds sound clip from the Supergirl (1984) movie soundboard.

You can hear this line at 01:40:33 in the Blu-ray version of the movie.

Quote context

[...]

- Who's that guy?

- He's my math teacher, I think.

- What are they for?

- Insurance.

- But you can't just give up. You founded a whole city.

- I did, and then I doomed it to destruction.

- That was an error. A tragic one.

- When you're my age and you make as many tragic errors as I do, it is a different tune that you will sing.

- I will not. I'll never give up. I will never spend my entire life in a place like this. I would die first!

- Strong words. There are worse things than dying and I deserve every one.

- What is this?

- A horse... I think. On earth I think it's called a horse.

- And you made this here? Then you haven't given up.

[...]