Entrepreneurs, myself included, are somewhat “creation addicted.” And because of our success in witnessing our dream come to life, we are often overly confident or optimistic in the potential market response to our next big idea. Entrepreneurs are guided by emotion—which is valuable, to be sure—but business sustainability and growth require that emotion be tempered by rigorous and thoughtful analysis. Again, it is a matter of balance—and, in my opinion, no entrepreneur can successfully embody both the “passion” and the “discipline” required to create an enduring company.