1. Sheryl Sandberg: "Men still run the world - and it's not going that well"

Sheryl Sandberg - Facebook's COO and a rare example of a woman leader in the male-dominated world of technology - thinks it's time that changed. "Men still run the world - and I'm not sure it's going that well," she told participants at a session on the future of work in Davos. And until we rectify that, everyone will suffer: "It means we're not using the full talent of the population."

2. Leadership lessons from Canada's Prime Minister Justin Trudeau

Canada's Prime Minister Justin Trudeau shared his views on leadership in a special address which covered technology, creativity and diversity.

3. German President Joachim Gauck: "People who need our protection are allowed to cost us something."

While German Chancellor Angela Merkel - a Davos veteran - had to cancel her participation in this year's event, Joachim Gauck, the country's president, made an appearance. In a special address, he drew on Europe's ongoing refugee crisis. "It is our humanitarian responsibility to take in victims of persecution," he told participants.

4. The impact on work

"The Impact On Work" is an episode of our seven-part Digital Media and Society video series, which is part of the Shaping the Future Implications of Digital Media on Society project.

5. Co-chair Satya Nadella: "There is going to be economic surplus that is going to be created because of the Fourth Industrial Revolution."

How will our lives be changed by the Fourth Industrial Revolution?

The Annual Meeting is taking place in Davos from Jan 20 to 23, under the theme "Mastering the Fourth Industrial Revolution".

This story first appeared in the World Economic Forum blog Agenda.