The way you can recognize to what you are committed to is by your actual results. What you have gotten in life is a direct result (good or bad) to what you have been committed to.

It is worthwhile for anyone to have behind him a few generations of honest, hard-working ancestry.

When I'm writing a novel, I'm dealing with a double life. I live in the present at the same time that I live in the past with my characters. It is this that makes a novelist so eccentric and unpleasant.

It's been a great adventure, everything I hoped for. But it's time to go home. I miss my family. I miss the Earth.

My galligaskins, that have long withstood The winter's fury, and encroaching frosts, By time subdued (what will not time subdue!), A horrid chasm disclosed.

Technology makes things faster and more cost-effective, but it's not perfect. It requires you to be as flexible as you can be.

We constantly learn new lessons up here. The experiences we gather will enable us to establish a long-term station on the moon and to go on to Mars.