Idealists and dreamers have a rum go in this world. The quote continues onto the next page saying, if someone can continue thinking optimistically about the world’s improvability, “the rarer and higher is the nature that can thus magnanimously persist in error.”
It’s easy to find reasonable grounds to despair of the world—but maybe the more valuable thing is to strive for a “rarer and higher” nature. We can all afford to be a little more magnanimous, without being deluded about the reality we live in.
I am very fond of castles in the embers of a dying fire.