- Countless examples of how we understand cause and effect much less than we think.

- "No matter where we live, our lives are guided and shaped by unwritten rules-so many of them, in fact, that we couldn't write them all down if we tried."

- The relative number of people who are organ donors varies between countries. Why? Religion, education, fear about receiving less aggressive care if you are an organ donor, et cetera. The default option for registration can explain the difference between two neighboring European countries. One country requires the citizen to actively elect to be a donor, while another country requires a citizen to decline the default option for being a donor.

- "We claim...that the Mona Lisa is the most famous painting in the world because it has attributes X, Y and Z. But really what we’re saying is that the Mona Lisa is famous because it’s more like the Mona Lisa than anything else."