“Knowing things is magical, if other people don't know them.”
Source: A Hat Full of Sky
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Terry Pratchett 796
English author 1948–2015Related quotes
“People fear/hate other nations only when they don't know them.”
Treo Notes (December 2006 - December 2009)

La guerre, c'est un massacre de gens qui ne se connaissent pas, au profit de gens qui se connaissent, mais ne se massacrent pas.
Bizarre, issues 24-31 (1962), p. 102
This apocryphal quote from Paul Valéry is never precisely sourced: neither on the internet nor in the works we have consulted. See: https://www.guichetdusavoir.org/question/voir/52650

“The Science you don't know looks like magic.”
Kona, in Ch. 30
Fluke, or, I Know Why the Winged Whale Sings (2003)

“A lot of hacking is playing with other people, you know, getting them to do strange things.”
5th HOPE conference (2004)