Daniel Goldin quotes:

We want to build colonies on the Moon, Mars, the Moons of other planets, and even nearby asteroids. We want to make space tourism and commerce routine.

There are no practical alternatives to air transportation.

The real mark of your character comes from not how you react to your successes, of which I know there will be many. How you react to your failures, of which there will be, if you are bold, a number in your lifetime.

So with imagination, ingenuity and audacity, explore, discover, change the world. And have fun while you're at it. Always take time out to love and to live. You're going to be busy, but never forget family and friends.

Books can be passed around. They can be shared. A lot of people like seeing them in their houses. They are memories. People who don't understand books don't understand this. They learn from TV shows about organizing that you should get rid of the books that you aren't reading, but everyone who loves books believes the opposite. People who love books keep them around, like photos, to remind them of a great experience and so they can revisit and say, 'Wow, this is a really great book.

You must also realize that the stuff of excellence-truth, real scientific truth-can be elusive... It is too often covered by the heavy fog of fear and hidden by the darkness of your detractors.