A lot of what Groupon is generating is demand for something people didn't know they wanted.

Starting a company, your success is going to be very dependent on how you adapt. You're going to make decisions, you're going to make bets; most of them are going to turn out to be wrong.

On mobile, what are the core apps? It's basically messaging, mapping and review data.

The entrepreneurs that really make it are the ones that start with an idea but are ready to change it at a moment's notice.

You have to be very nimble and very open minded. Your success is going to be very dependent on how your adapt.

Everyone is panicked about the transition to mobile. I don't lose any sleep whatsoever.

Yelp is in a very nice spot: local data, and especially review data, is one of the killer apps on mobile phones.

I think with every successful consumer Internet business, there will be lawyers that are interested in going after your company, especially when they think that there's a financial incentive.

Consumers are empowered by Yelp and tools like it: before, when they had a bad experience, they didn't have much recourse. They could fume, but often nothing else other than tell their friends.

Maintaining the trust of the consumer is critical to our business

In the very beginning, Yelp started as a service where we really didn't think people would write reviews for fun. The whole concept of user-generated content was pretty nascent in 2004.

For me, the subject of the picture is always more important than the picture.

Golf is like smoking, I have been trying to quit for years.

The gospel of Jesus Christ opens the path to what we may become.

Everybody has a colon. Everyone over 50 needs to get their colon checked.

I fell asleep to the scent of my wolf. Pine needles, cold rain, earthy perfume, coarse bristles on my face.

I would rather have a country run like hell by Filipinos than a country run like heaven by the Americans, because however a bad Filipino government might be, we can always change it.

Fear of punishment diminishes self-esteem and goodwill.

I am not going to let Athens affect the rest of my life.

Science can reconstruct Tyrannosaurus Rex from a fossilized bone and a fancied footprint, but it can't reconstruct God from the whole of creation.

Barcelona players are passing the ball at least 25 times to reach the goal, while Real Madrid's Xabi Alonso is doing this all in a single pass.