A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet. One of the great revelations of the age of space exploration is the image of the earth finite and lonely, somehow vulnerable, bearing the entire human species through the oceans of space and time.

For all our failings, despite our limitations and fallibilities, we humans are capable of greatness.

My wonder button is being pushed all the time.

Whatever the reason you're on Mars, I'm glad you're there, and I wish I was with you.

I don't want to believe. I want to know.

Those who seek power at any price detect a societal weakness, a fear that they can ride into office.

You can get into a habit of thought in which you enjoy making fun of all those other people who don't see things as clearly as you do. We have to guard carefully against it.