"But I think, and hope, that the novels can be understood and enjoyed as science fiction, on their own terms"

"Democracy is the art and science of running the circus from the monkey cage"

"Science never solves a problem without creating ten more"

"Hope is nature's veil for hiding truth's nakedness"

"Love, hope, fear, faith - these make humanity; These are its sign and note and character"

"He who despairs of the human condition is a coward, but he who has hope for it is a fool"

"Hope is the only universal liar who never loses his reputation for veracity"

"Poets have said that the reason to have children is to give yourself immortality. Immortality? Now that I have five children, my only hope is that they are all out of the house before I die"

"Hope is like the sun, which, as we journey toward it, casts the shadow of our burden behind us"

"All science is either physics or stamp collecting"

"The science of today is the technology of tomorrow"