This is brilliant. The irony is subtle but it's completely brilliant. "Do more by reading quotes which might encourage you to do more instead of actually doing more."
Fun. Would be nice to have a way to attribute the quotes, so you show quotes from notable people. Sometimes a quote is inspiring for who says it as much as for what it says.
The whole thing is a marketing gimmick anyway, since the OP runs the blog that you go to when you click on "I'm motivated". It's probably like that by design.
Mind blowing! Last night I thought of building the same thing with user submitted content. But, I was going to use the domain motivation.io (as in input/output).
I was just thinking a hackernews userscript that tossed these up somewhere in the layout might be good, given the audience. The core of it's just picking a random quote from an array so it should be simple. You could select lines or quotes from users and add them to the queue with LocalStorage or something.
All it does is take a random quote from the array and stick it in an extra table row, and there's a link that alerts text selected by the mouse (which is currently pointless) and I need to do all the localstorage stuff but yeah.