- In making your pictures, do you follow any ironclad rules?
- Just one. Never do anything that somebody else can do better.

— Himself (Walt Disney)

9 seconds sound clip from the Snow White and the Seven Dwarfs (1938) classic radio play.

You can hear this line at 00:43:03 in the radio play.

Quote context

[...]

- No, Mr. DeMille. If you do, I'll sue you.

- They fall in love.

- But the Great West in those days was a trackless wilderness.

- So one day the handsome young locomotive says to his beloved...

- Baby, we gotta make tracks!

- Well, in a crude way, that's the idea. But let's get serious, Walt.

- In making your pictures, do you follow any ironclad rules?

- Just one. Never do anything that somebody else can do better.

- That's why we ordinarily sidestep stories that could be done successfully in live action instead of animated action.

- What about the future, as the art of animating human figures develops?

- We'll never do Hamlet.

- Want to bet?

- Well, to be honest, our medium is so young and so unexplored and so fascinating, that we have to guard against daydreaming. We have too many immediate problems.

[...]