“I want the program to be both rewarding and exciting for my students, ... And the students have to possess the want of a challenge.”

“Making maximum money is not interesting. Living the best life on the least money - now there's an interesting challenge.”

“It's challenging to try to play, hit balls and also try to have family time, wife time.”

“The Games is a great challenge, both mentally and physically. [The crowds] give me butterflies just thinking about it.”

“He was in constant pursuit of new challenges. He chose to be a passing quarterback when a pass was used in desperation.”

“pursuing previously announced earnings targets despite the challenging fourth quarter and extremely difficult market conditions.”

“The retail marketplace is competitive and challenging. The common thread for both retailers and suppliers is the consumer. Collaboration is critical to success.”

“They just have so many challenges, from babies to elderly, that the least we can do is help,”

“It's going to be a tough challenge. Denver's a good football team. And they beat the defending Super Bowl champions.”

“These are challenges before the industry which can severely limit performance and the airlines' ability to operate efficiently and profitably.”