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The tone is really affectionate and inspired. It is filled with dedication and praise. Here the theme of the ravages of time again predominates; we see it especially in line 7, where the poet speaks of the inevitable mortality of beauty: "And every fair from fair sometime declines." But the fair lord's is of another sort, for it "shall not fade" - the poet is eternalizing the fair lord's beauty in his verse, in these "eternal lines".
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