It will be expensive, it will be risky and we will make mistakes as we go. But we will do it because we are explorers by nature.

I have had a lot of thoughts about Columbia and I will have thoughts after the landing, We're all going to be very focused ... on the job at hand.

Show me a person who has never made a mistake and I'll show you someone who has never achieved much

We made a lot of mistakes in the last four minutes and they made all the plays. You've got to give Massillon a lot of credit. They refused to quit.

Show me a person who has never made a mistake and I'll show you someone who has never achieved much.

The easiest way to convince my kids that they don't really need something is to get it for them.