What is coincidence and why do we attach meaning to it?
Is invisibility good or bad? Is it a matter of optics, morality or magic?
Jostein Gaarder on his novel Sophie’s World, the story of a teenage girl and a philospher
The dilemmas faced by charities trying to help people in areas run by militant groups
Why are we so drawn to symbols of statehood, and how can leaders use that loyalty?
What can we learn by observing others?
Fans with #blackface trigger racism debate at the World Cup
The median age in many Silicon Valley tech firms is 29. Is Silicon Valley ageist?
Can you have forgiveness without remorse?
How Iraqi insurgents use social media to amplify their message and gain global support
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