Books must be treated with respect, we feel that in our bones, because words have power. Bring enough words together they can bend space and time.

Things have no power that humans don't put there.

I don’t think it's weak to admit you made a mistake. That takes strength, if you ask me.

The labyrinth of Ephebe is ancient and full of one hundred and one amazing things you can do with hidden springs, razor-sharp knives, and falling rocks.

Oh, my dear Vimes, history changes all the time. It is constantly being re-examined and re-evaluated, otherwise how would we be able to keep historians occupied? We can't possibly allow people with their sort of minds to walk around with time on their hands.

Curiosity may have killed the cat, but her's curiosity could have massacred a pride of lions.

Colon thought Carrot was simple. Carrot often struck people as simple. And he was. Where people went wrong was thinking that simple meant the same thing as stupid.