Earlier quoted context omitted.
There's a slight implication because it only covers men that women are the source of unhappiness (e.g. the nagging wife trope), but I agree it's trivial and likely unintentional. Agree with sibling, just as applicable as "happy married people are happy partners, unhappily married people are great philosophers".
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Yes. https://en.wikipedia.org/wiki/Aristotle%27s_views_on_women