Isn't reading a wonderful thing, and I must give credit where credit is due.
That quote comes from a book entitled, "Thank God It's Monday," by Roxanne Emmerich. And while I'm less than 25% through the book already, I'd suggest it, as good stuff.
So what was meant. Essentially this comment was about don't tell me about the work and the difficulties, show me the results.
What she was saying is;
here's the gist;
Identify unreasonable goals and why they are unreasonable.
Recognize the obstacles and how to overcome them.
Develop a strategy.
Now to borrow another quote, from Nike;
Just Do It!
The obvious is that you will never reach unreasonable goals until you are willing to challenge them, develop a plan to reach the goal, and stick to it regardless of any/all obstacles which present themselves.
So when you've accomplished your unreasonable goal(s);
Don't tell me about the labor pains-show me the baby!