You want to be challenging for titles and in semi-finals and finals. Everyone is excited by that.
When you have an author and an auteur, it's a difficult and challenging relationship.
When you are challenging for the world title, you've got to go into the lion's den to try and rip that belt away from the champion.
To do things that are as complicated and challenging as spaceflight, you have to have all disciplines represented to get the job done.
These are challenging times for all Americans. We face the specter of war abroad and a steady stream of bad economic news at home.
There is something challenging in shooting something in just one day and there is freedom knowing there is going to be no censorship.
There are challenging days - but I'd tell people they should really do what they are interested in and not think about their gender.