Local commerce, without question, will be one of the fundamental use cases enabled by mobile devices over the next several years.

If dandelions were hard to grow, they would be most welcome on any lawn.

Admit your errors before someone else exaggerates them.

Hire great people and give them freedom to be awesome.

I'm weird. But I'm a pretty serious person.

After four and a half intense and wonderful years as CEO of Groupon, I've decided that I'd like to spend more time with my family. Just kidding - I was fired today.

You're building a tool, not a piece of art. Don't be blinded by the vision.

We can't be afraid to be weird.

I never thought of myself as an entrepreneur before I started this. I just like to build things.

I think if there's any difference between me and a traditional CEO, it's that I've been unwilling to change myself or shape my personality around what's expected.

Life is too short to be a boring company.

That's how it is with art. Mere humans who root through their refrigerators at three o'clock in the morning are incapable of such writing.

The universe will never force a mindset on you. You have complete free agency to choose fear and suffer unnecessarily if you want to.

I stood for almost an hour in a line of shuffling, bitter - eyed late mailers (Christmas is such a carefree, low - pressure time - that's one of the things I love about it), ...

When I die, I want to be cremated with everybody.

What our species needs, above all else, is a generally accepted ethical system that is compatible with the scientific knowledge we now possess.

All good things must come to an end.

We can live a life full and complete, thinking with our heads but living from our hearts.

It does me good to write a letter which is not a response to a demand, a gratuitous letter, so to speak, which has accumulated in me like the waters of a reservoir.

To even get to the Olympics, I have to qualify for the 2013 World Championships and the standard is high. I know I am always going to be a few points behind the top guys.