I have a theory and I really believe it. I think your worst weakness can become your greatest single strength.

Great sales people [don't] have the ability to feel sorry for themselves.

The biggest challenge in business is not the competition, it's what goes on inside your own head

Shark Tales: How I turned $1,000 into a Billion Dollar Business.

In business, you're the Chief Salesman. Create a sense of demand, rather than waiting to have demand.

Every single thing I learned about marketing and building my business, I learned from my mom, and she had never been in the workforce. She just had great practical sense.

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.