You'll get more support on a hard, important, project than a derivative one.

Most things are not as risky as they seem.

In the beginning of a company, there is no management and this actually works really well.

Why now, why is this the perfect time for this particular idea, and to start this particular company?

If someone is choosing between joining McKinsey or your startup it's very unlikely they're going to work out at the startup.

The best ideas often look terrible at the beginning the truly good ideas, don't seem like they're worth stealing.

Here's a good rule of thumb: don't worry about a competitor at all, until they're actually beating you with a real shipped product.