We'd never have got a chance to go outside and look at the earth if it hadn't been for space exploration and NASA.

Part of what drives us to explore and discover is the intangible: expanding our horizons, feeding our curiosity, finding all those unexpected things, and trying to answer those profound questions discussed in previous chapters, like how did the universe begin? How did life begin? Are we alone?

Decreasing the budget on the space exploration is nothing but a great treason to humanity! Space exploration is closely related to our very existence! Cut the budget on other things and increase the budget on the space exploration! Think great; if you do not think great, universe annihilates you!

Sailors on a becalmed sea, we sense the stirring of a breeze.

This is really a golden age of space exploration and discovery. But I can't go there with my field boots, so the next step is to send even smarter robots instead.

A blade of grass is a commonplace on Earth; it would be a miracle on Mars. Our descendants on Mars will know the value of a patch of green. And if a blade of grass is priceless, what is the value of a human being?