Yesterday (n.) is a mirror wherein if we look long enough we will see ourselves as others could never possibly see us.
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Yesterday (n.) is a period of time that has always existed, in contradistinction to a period of time called tomorrow that can never exist.
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Yesterday (n.) is the Eden of the sentimental.
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Yesterday (n.) is a short-change artist, from whom we can never recover.
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Yesterday (n.) is one evil less and one memory more.