Our single greatest challenge is the ability to move power to markets outside North Dakota.
John HoevenBusinessmen need to understand the challenges of society and contribute to solving them.
Victor PinchukI love a challenge and the last four years it has all come to fruition and it has been wonderful.
Sarah BrightmanI still really love acting. I find it really challenging. And I really love film; it's a lot of fun.
Steve ZahnPop music is so structured, and I'm excited to try and challenge that in my own work.
Sufjan StevensMen weren't always happy for me. It was very challenging to watch a woman be so successful.
Lady Gaga