Shadows of roses and scissors. We see the roses, we do not see the scissors; this does not mean that the scissors are less real than the roses. In other words, what we don't see (from our point of view) may have as strong an effect as what we do see.
<a href="//commons.wikimedia.org/wiki/User:Annatsach" title="User:Annatsach">Annatsach</a>
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