When I say "like those who..." I mean that all these were real philosophers, after Descartes that is not a rule anymore.
I would say that the real rule today is: everyone who publishes in philosophy magazines or has a chair in some philosophy department on some university is NOT a philosopher, all the others are.
As you can see from that Wikipedia article, the theme is totally ignored by philosophers. Wikipedia makes a huge effort to make a full article for it, but only achieves a small text full of sparse references to unrelated topics (self-knowledge, which is clearly not the same thing as we are talking about here; and various superficial silly comments from post-Descartes people).
I would say that the real rule today is: everyone who publishes in philosophy magazines or has a chair in some philosophy department on some university is NOT a philosopher, all the others are.
As you can see from that Wikipedia article, the theme is totally ignored by philosophers. Wikipedia makes a huge effort to make a full article for it, but only achieves a small text full of sparse references to unrelated topics (self-knowledge, which is clearly not the same thing as we are talking about here; and various superficial silly comments from post-Descartes people).