Just be nice, take genuine interest in the people you meet, and keep in touch with people you like. This will create a group of people who are invested in helping you because they know you and appreciate you.

The desire to change the world is a tremendous advantage as you travel down the difficult path ahead because focusing on a lofty goal is more energizing and attracts more talent than simply making a buck.

The angels started singing, the clouds parted, it was a religious experience. I've never had the same reaction to a product, not in 25 years.

Companies can add value and simultaneously promote themselves if their product or service truly improves the lives of their customers. I mean really improve lives, not wishful thinking, rationalization. That's the acid test.

Don't worry, be crappy. Revolutionary means you ship and then test... Lots of things made the first Mac in 1984 a piece of crap - but it was a revolutionary piece of crap.

People are free or cheap. Marketing: using Twitter or blogs. Cheap or free. Infrastructure: call up Amazon, call up Rackspace, terabytes of data in the clouds, thousand dollars, two thousand dollars.

"(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.