"In those days spirits were brave, the stakes were high, men were real men, women were real women and small furry creatures from Alpha Centauri were real small furry creatures from Alpha Centauri."

"I refuse to answer that question on the grounds that I don't know the answer"

"He attacked everything in life with a mix of extraordinary genius and naive incompetence, and it was often difficult to tell which was which."

"It is no coincidence that in no known language does the phrase 'As pretty as an Airport' appear."

"Even he, to whom most things that most people would think were pretty smart were pretty dumb, thought it was pretty smart."

"Space is big. You just won't believe how vastly, hugely, mind- bogglingly big it is. I mean, you may think it's a long way down the road to the chemist's, but that's just peanuts to space."

"Experience is a good school, but the fees are high."

"Experience, n. The wisdom that enables us to recognize as an undesirable old acquaintance the folly that we have already embraced."

"Books should to one of these fours ends conduce, for wisdom, piety, delight, or use."

"The busiest of living agents are certain dead men's thoughts; they are forever influencing the opinions and destinies of men."

"Would it upset men if they found out we weren't different? Are we? Aren't we? Damned if I know."

"The bitterest tears shed over graves are for words left unsaid and deeds left undone."