Although I'm not a very private person, I am someone who cares about security. When I want something to be a closely guarded secret, I ensure with my entire technical capacity that it is. To that end, I have done a lot of research on encrypting my hard drives, protecting data in transit, and of course ensuring strong encryption with difficult to brute force passwords. It's imperative to use a password manager like LastPass or 1Password, and the one password that you use should ideally have 90+ bits of entropy. So that you don't get an aneurism every time you type it, I recommend using dicewords (just a concatenation of household words). For the extra paranoid, use an actual die instead of a computer's random number generator and open all of the files so that an analysis of your drive (which should be encrypted anyway) can't be done to determine which word list you used.
read more quickGenerator.pydiceware.wordlist.asc
eff_large_wordlist.txt
eff_short_wordlist_1.txt
eff_short_wordlist_2_0.txt