Don't you dare underestimate the power of your own instinct. Instinct is a lifesaver for sharks and entrepreneurs alike. Most people can recall times they ignored their gut only to regret it later. Learning to actually listen to your instinct is a great form of self-preservation. It's both incredibly easy and tough at the same time, but worth the effort to master.

Don't be afraid to go for positions, jobs or take on clients just outside of your knowledge base. It's when you're uncomfortable that you learn and grow the most.

When you're building a business, you're either all in, or you're not.

Buy with your heart, not your head. You can look at all the aspects that make a purchase practical, but that kind of thinking makes it an investment rather than a home.

Become better at firing than hiring - it's crucial for building a business.

The most expensive hobby a rich man could have is a boat, and the second most expensive hobby he could have is a very old house.

The joy is in the getting there. The beginning years of starting your business, the camaraderie when you're in the pit together, are the best years of your life. So rather than being so focused on when you get big and powerful, if you can just get the juice out of that... don't miss it.