An idea isn't worth that much. It's the execution of the idea that has value. If you can't convince one other person that this is something to devote your life to, then it's not worth it.
Joel SpolskyRemember, just because Microsoft can do something, doesn't mean you can. Microsoft makes their own gravity. Normal rules don't apply to them.
Joel SpolskyEntrepreneurship boils down to the simple fact that a team of really smart people who can get things done are going to get smart, useful things done.
Joel Spolsky