Melissa Cefkin

Principal scientist, design anthropologist, Nissan Research Center

Not to be apologetic for, dismissive of, or frightened by my own power. It’s a lesson I’m still learning.

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Ertharin Cousin

60, former executive director of the United Nations World Food Program

I would have taken more time off for vacations. I was always afraid “there was too much to do” for a two-or-three-week vacation, so I carried over time every year, throughout my entire career. When I recently left my position and cashed out the unused vacation time, the money seemed minuscule in comparison to the adventures I missed.