“But there is one more reason to protect other species. One seldom if ever mentioned. Perhaps we are the first to talk and think and build and aspire, but we may not be the last. Others may follow us in this adventure. Some day we may be judged by just how well we served, when alone we were Earth’s caretakers.”

“Other generations perceived a plethora of swords hanging over their heads. But generally what they feared were shadows, for neither they nor their gods could actually end the world. Fate might reap an individual, a family, or even a whole nation, but not the entire world. Not then. We, in the mid-twenty-first century, are the first to look up at a sword we ourselves forged, and know, with absolute certainty, it is real...”

“True brilliance has a well-known positive correlation with decency, much of the time--a fact the rest of us rely on, more than we ever know. The real world doesn't roil with as many crazed artists, psychotic generals, dyspeptic writers, maniacal statesmen, insatiable tycoons, or mad scientists as you see in dramas.”

“Where subtlety fails us we must simply make do with cream pies.”

“Does the universe hate us? How many pitfalls lie ahead, waiting to shred our conceited molecule-clusters back into unthinking dust? Shall we count them?”

“It is a total mystery how we evolved minds capable of piloting cars through wild maneuvers using a wrist to steep while shouting at a cell phone. The creationists are fools for focusing on animal evolution. Darwin explains nature! He has more difficulty explaining us.”

“It may be that it is not given to us to know when we are angels. We may only be given to know when others are. This may be one of the reasons we need each other so.”