Eric Ries – Fear is the mind-killer:

"When a new engineer started at IMVU, I had a simple rule: they had to ship code to production on their first day. […] For some, this was an absolutely terrifying experience. "What if I take the site down?!" was a common refrain. I tried to make sure we always gave the same answer: "if you manage to take the site down, that's our fault for making it too easy. Either way, we'll learn something interesting."