Creating ways to be happy is your life's work, a challenge that won't end until you die.
The passionate vigour with which Asturias evokes the terror and distrust which poisoned the social atmosphere of the time makes his work a challenge and an invaluable aesthetic gesture.
Jobs also continue to demand very long work hours, a challenge for working parents.
Deciphering the map and finding the pink labels identifying Ms. Bourgeois's often small and inconspicuously situated works is a challenge with ample rewards.
The act of balancing the focus on exploring personal values with specific plans supporting return to work is a challenge for professionals working in occupational rehabilitation facilities.
Then you will see work as a challenge rather than a threat".
Projecting the long structural arc of this work is a challenge.
Curie's work presented a challenge, she said, "because it's difficult to do that with radioactivity".
Brad DeLong does a lot of work meeting a challenge from Kantoos, who insists that neither Brad or I have done justice to John Cochrane's arguments.
Rabe's work is a challenge to what he calls the "clockwork universe, clockwork play," in which "certain motions delivered certain consequences in a predictable proportionate way".
