Interesting that in the entire post, Fish does not mention the opposite of curiosity might be ignorance or something like that (apathy?).
In short, curiosity — sometimes called research, sometimes called unfettered inquiry, sometimes called progress, sometimes called academic freedom — is their God. The question, posed by thinkers from Aquinas to Augustine to Newman to Griffiths, is whether this is the God — the God, ultimately, of self — we want to worship. Given the evidence, including Chairman Leach’s address, the answer would seem to be yes.
It is obvious where I stand on this as one of my key strengths/weaknesses is a deep curiosity about a great many things. That is why my choice of profession is ideal.