Secrets are a lovely thing, don't you think? They can save one or damn another, and isn't the most astonishing thing that it's usually curiosity that compels one to either path? Ah, but if I tell you, it loses its grace, you see? We should do our utmost to protect beautiful things.

(He's more than right in his decision to not trust it. Nothing about Izaya has been trustworthy thus far, anyways. Izaya doesn't blame him for it.)