Psychologists call it "defocused attention," where you broaden your horizons, let your mind float and drift a bit. Coffee keeps us sharp and alert. It's great if you're driving at 3 o'clock in the morning. It's not so great if you're trying to come up with the next violin concerto.

A confused mind is one that is open to the possibility of change.

A mystery is not a puzzle waiting to be solved, but rather something for which there is no human solution. Mystery's offspring is not frustration but awe, and that sense of awe grows in tandem with knowledge.

We help other people because we can, or because it makes us feel good, not because we're counting on some future payback. There is a word for this; love.

I think we should have more coffeehouses, more cafes, more "third places." More places where people can get together that's not work, not home, and where they can interact with people who are different from them.

Haydn, Beethoven, Mozart, none of them were born in Vienna. They all moved there. It became a magnet, but what made it magnetized in the first place? There has to be a seed there. In the case of Vienna of about 1780, it was this deep-seated love of music.

The coffee shop played a big role in Vienna of 1900. Rents were sky high, housing was difficult to come by, your apartment probably wasn't heated, and so you went to the coffee shop. You went to the coffee shop because it was warm, because it was great Viennese coffee, and you went for the conversation and the company.