Sheryl Sandberg said this quote

“ In addition to the external barriers erected by society, women are hindered by barriers that exist within ourselves. We hold ourselves back in ways both big and small, by lacking self-confidence, by not raising our hands, and by pulling back when we should be leaning in. We internalize the negative messages we get throughout our lives - the messages that say it's wrong to be outspoken, aggressive, more powerful than men. We lower our own expectations of what we can achieve. We continue to do the majority of the housework and child care. We compromise our career goals to make room for partners and children who may not even exist yet. Compared to our male colleagues, fewer of us aspire to senior positions. This is not a list of things other women have done. I have made every mistake on this list. At times, I still do.My argument is that getting rid of these internal barriers is critical to gaining power. Others have argued that women can get to the top only when the institutional barriers are gone. This is the ultimate chicken-and-egg situation. The chicken: Women will tear down the external barriers once we achieve leadership roles. We will march into our bosses' offices and demand what we need, including pregnancy parking. Or better yet, we'll become bosses and make sure all women have what they need. The egg: We need to eliminate the external barriers to get women into those roles in the first place. Both sides are right. So rather than engage in philosophical arguments over which comes first, let's agree to wage battles on both fronts. They are equally important. I am encouraging women to address the chicken, but I fully support those who are focusing on the egg.Internal obstacles are rarely discussed and often underplayed. Throughout my life, I was told over and over about inequalities in the workplace and how hard it would be to have a career and a family. I rarely heard anything, however, about the ways I might hold myself back. These internal obstacles deserve a lot more attention, in part because they are under our own control. We can dismantle the hurdles in ourselves today. We can start this very moment. ”