Understanding the power of the underdog requires an effort. It requires standing up to conventional wisdom. - Malcolm Gladwell

Of the three, the third trait — the idea that epidemics can rise or fall in one dramatic moment — is the most important, because it is the principle that makes sense of the first two and that permits the greatest insight into why modern change happens the way it does.

People are in one of two states in a relationship. The first is what I call positive sentiment override, where positive emotions overrides irritability.

If you make a great number of predictions, the ones that were wrong will soon be forgotten, and the ones that turn out to be true will make you famous.