The mighty pen

Everyone knows the pen is mightier than the sword. Yet, no monograph has been written on the various powers of the pen. Such a topic could be tackled like this:

The power to defame, malign and blacken: the poison pen, the dipping of the pen in gall.

The power to make unintentional mistakes, to get things wrong, there's power in that: the slip of the pen.

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