If you want general prose for a stimulus, try Atonement by Ian McEwan. It's an excellent novel. Or, for speeches, I suggest The perils of indifference by Elie Wiesel. That's powerful stuff.
"Don't bother just to be better than your contemporaries or predecessors. Try to be better than yourself." William Faulkner.
Do you do poetry? Check out Poetry Inspiration over in Groups!
'This must be Thursday,' said Arthur to himself, sinking low over his beer. 'I never could get the hang of Thursdays.' — Douglas Adams, The Hitchhiker's Guide to the Galaxy