Living a long life, the conventional wisdom at the time said, depended to a great extent on who we were — that is, our genes. It depended on the deci… - Malcolm Gladwell

We have trouble estimating dramatic, exponential change. We cannot conceive that a piece of paper folded over 50 times could reach the sun. There are abrupt limits to the number of cognitive categories we can make and the number of people we can truly love and the number of acquaintances we can truly know. We throw up our hands at a problem phrased in an abstract way, but have no difficulty at all solving the same problem rephrased as a social dilemma. All of these things are expressions of the peculiarities of the human mind and heart, a refutation of the notion that the way we function and communicate and process information is straightforward and transparent. It is not. It is messy and opaque.

he waits for the kid to decide whether to pull the gun up or simply to drop it - and all the while, even as he tracks the progress of the gun, he is also watching the kid's face, to see whether he is dangerous or simply frightened. is there a more beautiful example of a snap judgment? this is the gift of training and expertise - the ability to extract an enormous amount of meaningful information from the very thinnest slice of experience.

You believe someone not because you have no doubts about them. Belief is not the absence of doubt. You believe someone because you don’t have enough doubts about them.