The idea that extremely powerful and successful people are a little bit out of touch with reality is a common one. It does take some degree of “delusion” to believe that one will beat the odds when the odds are tremendously stacked against them. We don’t think that any current celebrity is delusional, but if a friend tells us they believe they can be famous, we may quietly think they’re delusional. Good. They have to be. If people only decided to do something when the odds were stacked in their favor, then we wouldn’t have many great people who’ve done incredible things. And that brings us to our final trait found in successful entrepreneurs: optimism. Actually, extreme optimism. The researchers at Harvard Business School describe this as “Having unrealistic beliefs in positive outcomes.” The important thing that the researchers encourage entrepreneurs to think of is this: combine that optimism with as much knowledge, skills, and drive as possible. You can’t get anything done with just optimism, or just skills. But the combination of both is powerful. So know when friends and family tell you that you’re “crazy” or “unrealistic” about your dreams, you should take it as a compliment. All the greats are!