The same principles have made fortunes for the founders of fast-casual restaurants like Shake Shack, Danny Meyer's burger behemoth that now has locations in 10 countries outside the United States.
This strategy is similar to the "three good things" exercise recommended by Martin Seligman, a professor of psychology at the University of Pennsylvania and one of the founders of the positive psychology movement.
His visit included a trip to a Yaba, known as the Silicon Valley of Nigeria, where he toured a coding camp for kids and met with about 50 local startup founders and developers at CcHub, a local innovation center.
Unlike others who have succeeded charismatic and forceful founders, including John Sculley when Apple forced out Jobs in the mid-1980s, he has stopped it veering off track and managed to develop and broaden its product line.
The founders of Otto said in a blog post that they were combining with Uber to "build the backbone of the rapidly-approaching self-driving freight system".
When Buffer, a software firm, introduced the policy for its employees in 2014, the founders came to a simple realisation: "It was only over time that we noticed, in our own experience, that we weren't taking any.
Lin Tingfeng, one of the founders of qidian.
"Our work goes on, our mission endures, the war still rages, and the dream of our founders shall never die.
In the digital economy, start-ups, professional firms and big companies alike need founders and decision makers with multi-layered skills.
The mantra of drop out, start up, helped define the revolutionary spirit of companies like Facebook, Apple and Microsoft, whose founders quit formal education to launch what became world-beating ventures.
In his Founders' Letter of 2013, he warned that companies tend to grow comfortable doing what they have always done and only ever make incremental change.
Johann Huber, one of Soma's founders, hopes this will prompt companies to figure out when they are working particular teams too hard, so they can address the problem before people start going off sick or quitting.
While expecting to draw a third of its students from the US, the programme is intended to pull promising talent from around the world, with a strong focus on Asia and developing countries in other regions, according to its founders.
Founders concede that part of their calculation is the chance to keep more of the fees they generate for themselves.
Researchers and policymakers have so far ignored the field, say the founders.
In an informal poll last month by CB Insights, a private company data firm, 63 percent of the 4,040 respondents — mostly start-up founders who are also parents — said they struggled with balancing their start-up and parental duties daily or all the time.
Another was an office that was empty except when one of the company's founders visited.
Influenced by the May Fourth Movement, he turned to writing in the vernacular and in 1921 was one of the founders of the Literary Research Association, which called for a reality-oriented literature.
But despite all of this -- despite the enormity of the task that lies ahead -- I stand here today as hopeful as ever that the United States of America will endure, that it will prevail, that the dream of our founders will live on in our time.
Change Has Come To America If there is anyone out there who still doubts that America is a place where all things are possible, who still wonders if the dream of our founders is alive in our time, who still questions the power of our democracy, tonight is your answer.
