What I like to do when I surf the net is copy and paste words which I find profound. I've got a few Pages files where they're just random snippets (sometimes entire articles) that I've jacked from forums, blog comments, ect.
What you can do from there is get a program like Natural Speak and put it in there. Record it and you're off to the races.
Alternatively, you can read it all out yourself. Just need a microphone.