The challenge of the unknown future is so much more exciting than the stories of the accomplished past.

So if a college education is indispensable, the challenge as I see it is how to make it more accessible.

If we never challenge our shortcomings, we ensure that they remain our Achilles' heel.

Because vision appears so effortless, we are like fish challenged to understand water.

The higher man is distinguished from the lower by his fearlessness and his readiness to challenge misfortune.

I don’t really believe in aliens. I like to think of them as planet challenged.

You may be cool under pressure and challenge, but can you be cool under success?

His last thought flashed like a mantra over and over again.Let the challenge begin.

What is important is to keep learning to enjoy challenge and to tolerate ambiguity. In the end there are no certain answers.

To change, you need to accept your past and deny to be challenged and overcome by your future.