Impossible.

Don't be silly,
That can't be done
It's impossible,
Just not probable
Try and be realistic, dear.

Don't be silly,
Don't tell me it can't be done,
It's not impossible,
People have done it before,
I am being realistic, here.

Don't be silly,
Don't you know who I am?
I am woman, hear me roar.
I might not be the mighty moon
But I'm a star,
Burning just as bright.

Don't be silly,
I know it can be done
It's near impossible,
But not altogether improbable
It might not be realistic,
But they're dreams that'll come true, dear.