Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist. ...

Most horses don't walk backwards voluntarily, because what they can't see doesn't exist. (Terry Pratchett)

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Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.

Terry Pratchett Quotes: Most horses don't walk backwards voluntarily, because what they can't see doesn't exist.