Stephen Walli has a fine post titled "Startup Mechanics: Security, Responsibility, and Equanimity"  on his blog Once More Unto the Breach. He talks about the myth of security in a big company, and of the responsibility an entrepreneur must take in his or her own venture. Here's a snippet:

In a startup you need to be very comfortable constantly making decisions with less than perfect data that will fundamentally effect the course of a small company. Some of those decisions will be wrong.  Everyone on the team will know it.  How you behave about such mistakes will define your personal success more than the bad decision ever could. How you behave when others on the team make their mistakes will fundamentally define the success of the team.

Some sound advice for anyone attending Entrepreneur Week this year :)