La cualidad más importante que puede tener un líder es la capacidad de aprender». - Sheryl Sandberg

"Leadership is about making others better as a result of your presence and making sure that impact lasts in your absence."
(Harvard Business School definition of leadership)

Less than six months after I started at Facebook, Mark and I sat down for my first formal review. One of the things he told me was that my desire to be liked by everyone would hold me back. He said that when you want to change things, you can’t please everyone. If you do please everyone, you aren’t making enough progress. Mark was right.

When we look for joy, we often focus on the big moments. Graduating from school. Having a child. Getting a job. Being reunited with family. But happiness is the frequency of positive experiences, not the intensity.