Rolf -
In summary form, it's "good without God" but in the sense of an absolute good that is not related to pleasure. Nietzsche wrote against it for similar reasons. It's an ambiguous term that is more akin to politics than philosophy. There is no recognized definition of what humanism really means - yes there are various groups with their own definitions but there is no systematized statement or formal school where anyone has the right to say is what it really means. And in the sense of implying that there is an absolute good, rather than defining good in relation to pleasure, it's really closer to platonism or stoicism, but without specifying a source for its claims.
EDIT:
In other words, "Good without god" is incomplete, and fails to define what good really means, and equates to "Good without giving a reason"
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Epicurean Philosophy Vs. Humanism
But I was reminded of this point today and I think it is time to start a thread on it. My position is that "Humanism" is just another "-ism" that has a goal at its center which is very different from…