"Nothing is impossible. The word itself says "I'm possible!".

This was written by Audrey Hepburn.

Now what does it mean?

Meaning

Just because you think you can't do something doesn't mean you can't do something.

Maybe you've found a way that doesn't work but try to look more detailed, look outside the box. She found a whole new meaning from a word that means the opposite of what she discovered.

You can find the opposite of a way towards failure.