Angela Lee Duckworth: Grit: The power of passion and perseverance

Leaving a high-flying job in consulting, Angela Lee Duckworth took a job teaching math to seventh graders in a New York public school. She quickly realized that IQ wasn't the only thing separating the successful students from those who struggled. Here, she explains her theory of "grit" as a predictor of success.

Bill Gross: The single biggest reason why startups succeed

Bill Gross has founded a lot of startups, and incubated many others — and he got curious about why some succeeded and others failed. So he gathered data from hundreds of companies, his own and other people's, and ranked each company on five key factors. He found one factor that stands out from the others — and surprised even him.

9 Fun Businesses You Can Start for Under $2,000

If you're ready to start a business, but have little startup capital, there are still many good (and fun) ideas to pursue. Try these on for size.

Barbara Corcoran: Build a Powerful Brand

Barbara Corcoran learned early the value of building a powerful brand. In this lesson she teaches you shortcuts for standing out amidst the noise in your industry. Her latest book is Shark Tales: How I Turned $1,000 into a Billion Dollar Business (http://goo.gl/Y6YdVU). Barbara is Co-Founder of Barbara Corcoran Venture Partners

13 Stupid Tips

Our brain can potentially memorize 2.5 petabytes of information, which is roughly the equivalent of 3 million hours of YouTube videos. In order to use some of that staggering capacity a little more effectively when you study, here are some tips that are based on widely accepted research by neuroscientists and learning experts.

Kio Stark: Why you should talk to strangers

"When you talk to strangers, you're making beautiful interruptions into the expected narrative of your daily life — and theirs," says Kio Stark. In this delightful talk, Stark explores the overlooked benefits of pushing past our default discomfort when it comes to strangers and embracing those fleeting but profoundly beautiful moments of genuine connection.

Why you should listen

Kio Stark has always talked to strangers. She started documenting her experiences when she realized that not everyone shares this predilection. She's done extensive research into the emotional and political dimensions of stranger interactions and the complex dynamics how people relate to each other in public places.

Her novel Follow Me Down began as a series of true vignettes about strangers placed in the fictional context of a woman unraveling the eerie history of a lost letter misdelivered to her door.

Stark did doctoral work at Yale University’s American Studies program, where she thought a lot about the history of science and medicine, urban studies, art, and race -- and then dropped out. Because she also taught graduate courses at NYU's Interactive Telecommunications Program, numberless people consulted her about whether or not to go back to school. Those conversations inspired Don't Go Back to School, a handbook for independent learners.

Stark is the author of the TED Book When Strangers Meet, in which she argues for the pleasures and transformative possibilities of talking to people you don’t know. 

Beyond strangers, Stark's abiding fixations include the invisibility of technology; how people learn; practices of generosity and mutual aid; the culture, infrastructure and ephemera of cities; mythology and fairy tales; and advocating for independent learning, data literacy, social justice and feminism. Fiction writers get to dive down wonderful rabbit holes, and some of her favorites have been the forging and stealing of art, secret societies, the daily lives of medical examiners, the physics of elementary particles, bridge design, the history of maps, the mechanisms of wrongful conviction and psychoanalysis.

When not writing books, Stark has worked in journalism, interactive advertising, community research and game design. She writes, teaches and speaks around the world about stranger interactions, independent learning and how people relate to technology. She also consults for startups and large companies helping them think about stranger interactions among their users and audiences.

Why Some Countries Are Poor and Others Rich