Real empathy is sometimes not insisting that it will be okay but acknowledging that it is not.

Grief affects job performance, so giving workers time off to grieve can lead to stronger outcomes at work.

A lot of people will say, "what's Facebook's business model?" I always find that a kind of funny question. Our business model is out there, which is: we monetize largely through advertising and a little bit through the gift revenue, the virtual gifts we have on our site. I think those continue to be the most promising avenues going forward.

I just believed. I believed that the technology would change people's lives. I believed putting real identity online - putting technology behind real identity - was the missing link.

People assume Wall Street is a certain culture and tech is a certain culture. But if you look at the (gender) numbers at the top of (those) industries, they don't vary very much. I think in finance, women hold 19 percent of the top jobs, and women are 21 percent of the leaders in nonprofits.

When companies offer support and assistance for personal and family hardships, their employees become more loyal and more productive.

I wish I could just go tell all the young women I work with, all these fabulous women, 'Believe in yourself and negotiate for yourself. Own your own success.' I wish I could tell that to my daughter. But it's not that simple.