"The sharp side of the knife goes away from you. Pure reason does not trump brute force but suprisingly few people know what hot peppers look like when the teacher asks if you have enough to share with everyone. Never take the lid of a pressure cooker 'to see if it's done yet'. Even if you are careful with the picric acid that won't matter if you are careless with other items next to it. Move *away* from mysterious burglar alarms. Do not append 'you moron' to exposition directed at people who have just broken into your building. 'We need to talk' is overwhelmingly unlikely to precede good news. A rough brick wall may be used to sort socks or as a backdrop for sock-art . A silent cat is Up to Something. Lungs are unsuited for many possible atmospheres, including that of London, and anything with a high content of industrial cleaners. Youth will not save you from Newton's Laws. Or Darwin's."

“It's true that the average human in the Xeelee universe can't eat Jell-O with a straw without accidently removing an eye but these particular humans start off no stupider than than any other human of their era and proceed to breed themselves into imbecility. Well, farther into imbecility.”

“In point of fact, the meteor was something like 30 km when it exploded. It was over north Waterloo and I was north of St Agatha. Two spherical clouds, and two explosions. Unfortunately, I was dealing with a goat that was trying to eat an oil truck's fuel line, goats having this optimistic 'Well, maybe it has become edible since they last time I tried this' worldview, and I missed seeing the explosions.”

“Creating stars in laboratories on the very planets you inhabit turns out to be a bad idea.”

“Before it exploded one night, I went to a four grade, two room schoolhouse and we had textbooks from the 1940s.”

“Atomic war is bad but you know what’s even worse? Having had enough atomic wars that you can rank them in terms of horribleness.”

“If there's a stack , the unpromising stuff goes at the top and the promising stuff goes at the bottom. That way, I am eager to finish Overwrought Romantic Mary Sue Fantasy because I know that will let me read Niche Product That Only the Author, James and Some Guy at JPL Likes.”