This blog's designated patron saint is Rudolf Virchow, who as an agnostic would have been incensed by such a title. In the banner, I've just restored his famous statement about politics as medicine on a large scale; Camus' anti-pestilence statement was beginning to look like a truism.
But Virchow himself was no saint; as Wikipedia points out, he had the vices of his virtues. Having been a brilliant doctor, the founder of modern pathology, a skeptic about the whole concept of the "Aryan race," and a politically influential public-health expert, he thought he was right about everything else as well. So he didn't accept evolution or the germ theory.
Even in that, we can learn from Virchow. We know far more than he and his contemporaries did, but we are doubtless as pigheaded about some issues as he was. We praise Newton's physics, and glide with averted eyes past his obsession with alchemy. And we can praise Rudolf Virchow's medical and political insights while recognizing that we too may sometimes miss something that our grandchildren will find painfully obvious.