March 13, 2015 10:53 AM EDT

As the world mourns the loss of fantasy author Terry Pratchett, who died Thursday at the age of 66 after a battle with early onset Alzheimer’s disease, here are some of his witty and memorable quotes.

Read next: Terry Pratchett’s last tweet was heartbreakingly final

Write to Naina Bajekal at naina.bajekal@time.com.

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