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You know, there has never been a 24-hour period in five years when I have not responded to e-mail at Facebook. I am not saying it's easy. I work long hours.

"Sheryl Sandberg: 'No one can have it all'". Interview with Joanna Barsh, alumni.mckinsey.com. April 24, 2013.
You know, there has never been a 24-hour period in five years when I have not responded to e-mail at Facebook. I am not saying it's easy. I work long hours.