The challenges of change are always hard. It is important that we begin to unpack those challenges that confront this nation and realize that we each have a role that requires us to change and become more responsible for shaping our own future.

Any work that's worth doing has its challenges as well as its opportunities. That's true if you're running a business it's true if you're trying to help on a campaign.

I want to be perceived as a guy who played his best in all facets not just scoring. A guy who loved challenges.

If you have a positive attitude and constantly strive to give your best effort eventually you will overcome your immediate problems and find you are ready for greater challenges.

The art challenges the technology and the technology inspires the art.

I spend my life essentially alone at a computer. That doesn't change. I have the same challenges every day.

In today's interdependent world a threat to one becomes a menace to all. And no state can defeat these challenges and threats alone.

No nation can meet the world's challenges alone.

One of the great challenges of our age in which the tools of our productivity are also the tools of our leisure is to figure out how to make more useful those moments of procrastination when we're idling in front of our computer screens.

Any new financial order for the world must tackle the three chief challenges of our age.