“If you still believe that aliens would travel hundreds of light years to carve temporary graffiti in our wheat, then your imagination is one of the seven wonders of the world, and should be bronzed.”

“Like prospecting in the 19th century, reconnaissance of the asteroids would of necessity take place in an arena where trouble is likely and help is distant. Heroic stories of individual triumph and...”

“If you could drive straight down, into a tunnel bored through the crust of the planet, you'd hit this molten mess in about an hour. It's called the asthenosphere - a sluggish sea, several hundred m...”

“Plate tectonics is not all havoc and destruction. The slow movement of continents and ocean floors recycles carbon dioxide dissolved in the oceans back into the atmosphere. Without this slow speed ...”

“The stars look the same from night to night. Nebulae and galaxies are dully immutable, maintaining the same overall appearance for thousands or millions of years. Indeed, only the sun, moon and pla...”

“Each year, thousands of UFOs are sighted and reported, which is an impressive tally of unidentified aerial phenomena. Surveys show that roughly one-third of the populace believes that at least some...”

“There is no end to wonder once one starts really looking.”

“Look upon the world with loving eyes and the reflection everyone sees will contain love.”

“Go look in the mirror and have a talk with your real boss”

“If two men on the same job agree all the time, then one is useless. If they disagree all the time, both are useless.”

“Silence is the invisibility of talking. I'd take half an argument over half a silence any day. And I'd take peace and quiet over a full-blown argument any other day, unless it's Tuesday.”

“You dont know anything about me.No, I know not everything about you. But I sense enough to know you have mistaken obsession with drive, guilt with injustice. I know you want to escape what you are,...”

“The life of my people is to remember forever; each head granary is full. The life of your people is to forget: your thing granaries ("museums"), and not yourselves, are full.”

“We are now in the mountains and they are in us, kindling enthusiasm, making every nerve quiver, filling every pore and cell of us.”

“The living sinners on deadly ground.”