Original, in English, here.
Tradução, para português, aqui.

The psychiatric profession prefers to ignore the possibility of mass insanity and to focus on individual disorders in spite of a mass of historical evidence of societies and entire nations being gripped by mental disorders of one sort of another. Be that as it may; the Napoleon Complex, so named after Napoleon Bonaparte, who was much too short for a national leader of his time and also incredibly nasty and quite full of himself to compensate, is not a recognized medical diagnosis in any case.

It is a certain mental condition or set of character traits that affects men of low physical stature, causing them to be overly aggressive and self-assertive, to wear platform shoes in order to look just a bit taller and to chafe at being called "short stuff," "little man," "knee-biter," and other such belittling epithets.

Here is a fairly generic psychologist's description of the Napoleon Complex:

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