It cannot be said often enough that science fiction as a genre is incredibly educational - and I'm speaking the written science fiction, not 'Star Trek.' Science fiction writers tend to fill their books if they're clever with little bits of interesting stuff and real stuff.
Terry PratchettI try to make computers say things like You have 60 seconds to achieve safe distance.
Terry PratchettThere are all kinds of darkness, and all kinds of things can be found in them, imprisoned, banished, lost or hidden. Sometimes they escape. Sometimes they simply fall out. Sometimes they just can't take it any more.
Terry PratchettWould a minute have mattered? No, probably not, although his young son appeared to have a very accurate internal clock. Possibly even 2 minutes would be okay. Three minutes, even. You could go to five minutes, perhaps. But that was just it. If you could go for five minutes, then you'd go to ten, then half an hour, a couple of hours...and not see your son all evening. So that was that. Six o'clock, prompt. Every day. Read to young Sam. No excuses. He'd promised himself that. No excuses. No excuses at all. Once you had a good excuse, you opened the door to bad excuses.
Terry Pratchett