Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle. ...

You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle. (Terry Pratchett)

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Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.

Terry Pratchett Quotes: You never know until you look, said Nanny Ogg, expounding her own Uncertainty Principle.