I was recently reading a book by a Vietnamese Buddhist monk (Yes...I really do read books by Vietnamese Buddhist monks. No, I'm not Buddhist.) when I came across this section that struck me:
When I think deeply about the nature of hope, I see something tragic. Since we cling to our hope in the future, we do not focus our energies and capabilities on the present moment. We use hope to believe something better will happen in the future...Hope becomes a kind of obstacle. - Thich Nhat Hanh
Granted, I'm pretty sure he wasn't talking about starting a business and this is out of context. None-the-less, I think some "live in the moment" lessons can be applied to this thing we call the startup.