I chose to embrace the spirit of my mother, who, though she had too many of her own dreams denied, deferred, and destroyed, she still instilled in me, her child, that I could have dreams and that I did have a responsibility and the power.

Hope - Hope in the face of difficulty. Hope in the face of uncertainty. The audacity of hope!

If two billion people wanted to watch a robot fly by Pluto, imagine what it will be like when the first humans step on Mars. It'll be the most unifying event anybody could ever put on.

Well, the task I've set forth will long outlive our own generation. But together, we too have come through the worst. Let us now begin a major effort to secure the best- a crusade for freedom that will engage the faith and fortitude of the next generation. For the sake of peace and justice, let us move toward a world in which all people are at last free to determine their own destiny.

When you do something noble and beautiful and nobody noticed, do not be sad. For the sun every morning is a beautiful spectacle and yet most of the audience still sleeps.

There is nothing enlightened about shrinking so that other people will not feel insecure around you. We are all meant to shine, as children do. We were born to make manifest the glory of God that is within us. It is not just in some of us; it is in everyone and as we let our own light shine, we unconsciously give others permission to do the same. As we are liberated from our own fear, our presence automatically liberates others.