In my experience as CEO, I found that the most important decisions tested my courage far more than my intelligence.

Groupon looked like a very high valuation, but any investment in a great company at any stage is almost always a good investment.

Planning is valuable, tho the plan is usually useless.

Volatility and length, that's the value on an option. 10 years on a startup stock, that's a big valuable thing.

One of the great things about building a tech company is the amazing people that you can hire.

In Silicon Valley, when you're a private company, the entrepreneur can do no wrong.

Wartime CEO is too busy fighting the enemy to read management books written by consultants who have never managed a fruit stand.