One misconception is that entrepreneurs love risk. Actually, we all want things to go as we expect. What you need is a blind optimism and a tolerance for uncertainty.

You're not going to become a great manager overnight. You're not going to become a great public speaker or figure out how to raise money. These are the things you want to start the clock on as early as possible.

We've had customers from the beginning. The reason people use Dropbox is because they really love it. We think more about who is going to be competing with what we are going to be doing, not with where we started.

If you have a dream, you can spend a lifetime studying, planning, and getting ready for it. What you should be doing is getting started.

The happiest and most successful people I know don't just love what they do, they're obsessed with solving an important problem, something that matters to them.

If you start your own thing, you can learn a lot really fast from doing things wrong.

You have to adopt a mindset that says, 'Okay, in three months, I'll need to know all this stuff, and then in six months there's going to be a whole other set of things to know - again in a year, in five years.' The tools will change, the knowledge will change, the worries will change.