Machiavelli, via Porch Dog:
When evening arrives, I return home, and enter my study, and at the door I take off my daytime clothes, full of mud and filth, and I put on royal and curial robes. Having gotten dressed again appropriately, I enter the ancient courts of ancient men, where received lovingly by them, I feed on that food which alone is mine, and I was born for it; where I am not ashamed to speak with them, and ask them the reasons for their actions, and they, humanely, answer me.
That was also the original motivation for starting this blog. It amazes me how many writers have said similar things, and I am sure not all those who have said it, read it first in Machiavelli. I think it is what readers and writers do.