‘To (Robert) Sternberg, practical intelligence includes things like “knowing what to say to whom, knowing when to say it, and knowing how to say it for maximum effect.” It is procedural: it is about knowing how to do something without necessarily knowing why you know it or being able to explain it. It’s practical in nature: that is , it’s not knowledge for its own sake. It’s knowledge that helps you read situations correctly and get what you want. And, critically, it is a kind of intelligence separate from the sort of analytical ability measured by IQ. To use the technical term, general intelligence and practical intelligence are “orthogonal”: the presence of one doesn’t imply the presence of the other. You can have lots of analytical intelligence and very little practical intelligence, or lots of practical intelligence and not much analytical intelligence, or – as is the lucky case of someone like Robert Oppenheimer – you can have lots of both.’
– Malcolm Gladwell in Outliers:The Story of Success
