That was the thing about time travel. You were never ready for it. About the only thing he could hope for… — Terry Pratchett
That was the thing about time travel. You were never ready for it. About the only thing he could hope for, Rincewind decided, was finding da Quirm's Fountain of Youth and managing to stay alive for a few thousand years so he'd be ready to kill his own grandfather, which was the only aspect of time travel that had ever remotely appealed to him. He had always felt that his ancestors had it coming to them. (p. 92)
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More from this book
"This is really horrible," said Eric, as they walked away. "It gives evil a bad name." (p. 171)
The kings of Hell might have heard of words like "subtlety" and "discretion," but they had also heard that if you had it you should flaunt it and reasoned that, if you didn't have it, you should flaunt it even more, and what they didn't have was good taste. (pp. 186-187)
The speaker was Duke Vassenego, one of the oldest demons. How old, no one knew. But if he didn't actually invent original sin, at least he made one of the first copies. In terms of sheer enterprise and deviousness of mind he might even have passed for human and, in fact, generally took the form of an old, rather sad lawyer with an eagle somewhere in his ancestry. (pp. 173-174)

