Sarah Jessica Parker: "I know it was hard work and I know I had long hours and I know it was hot and I know it was constantly challenging to us in the most unthinkable ways, but what I recall is this amazing, once in a lifetime experience.
My team and I are constantly challenging ourselves to be able to remain the largest and most dominant player in this region.
As the mother of two boys, ages 6 and 8, I am constantly challenged to help my sons find appropriate viewing on television.
He's constantly challenging Kazuma to a fight, but he's loyal and always respects those who don't hold back.
Or, as Lewis Bernstein, the show's executive producer, put it, "We're constantly challenging ourselves to reinvent ourselves".
"On the other hand," he continued, "it is engaging in an increasingly tight encirclement of China and is constantly challenging China's core interests".
The old timers take it very seriously to the extent that they're constantly challenging the umpire's decision".
It's on a number of levels, and it's a question that we're constantly challenging ourselves with.
"I was out as queer and undocumented long before it was cool and hip," said Prerna Lal, a Fiji-Indian law student and blogger who is constantly challenging what it means to be undocumented in this country.
He was constantly challenging himself, and he made it look so graceful and easy.
