[fuzzfactor]

One example unbreakable password:

>An excerpt from a religious text with a trailing space:

>"I'd just like to interject for a moment. What you’re referring to as Linux, is in fact, GNU/Linux, "

Followed by the deadpan sage advice:

>Don’t use actual excerpts from pre-existing works as your password.

IOW don't try this yourself unless you make up your own religion. Established scriptures of all other kinds have been completely compromised long ago ;)