You're surprised by something, but you don't really know what surprised you; you recognize someone, but you don't really know what cues cause you to recognize that person.
Daniel KahnemanMost of the time, we think fast. And most of the time we're really expert at what we're doing, and most of the time, what we do is right.
Daniel KahnemanA large portion of the weekend effects is explained by differences in the amount of time spent with friends or family between weekends and weekdays.
Daniel Kahneman