It doesn't matter whether the Dow is 5000 or 50,000. If you're an entrepreneur, there is no bad time to start a company.

You say: "I'm a blue sky thinker." Investor thinks: "You have no business model, and you don't know how to ship."

Money is not the sole or most powerful motivation for many people. A higher and tougher test is to look back and see how you've made the world a better place.

You have to start with the basic premise that you need to know what your competition is doing.

There are two types of people on social media: people who want more followers, and liars.

Companies in Europe should stop trying to do the U.S. version of a European idea.

Luck favors the people who are willing to grind it out.