My theory is that when you're young, you should work eighty hours a week to create a product or service that changes the world.

The secret of evangelism is Guy's golden touch - whatever is gold, Guy touches. That’s very different than saying whatever Guy touches turns gold.

The root of great companies is make meaning vs. make money.

"(Big name research firm) says our market will be $50 billion in 2010." Every entrepreneur has a few slides about how the market potential for his segment is tens of billions. It doesn't matter if the product is bar mitzah planning software or 802.11 chip sets. Venture capitalists don't believe this type of forecast because it's the fifth one of this magnitude that they've heard that day. Entrepreneurs would do themselves a favor by simply removing any reference to market size estimates from consulting firms.

Writing is therapeutic. It helps you cope with issues that seem gargantuan at the time. The process of expressing yourself about a problem, editing your thoughts, and writing some more can help you control issues that you face.

I want to know which idea you're going to kill yourself trying to make successful, not which ideas have crossed your idle mind.

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.