Hillary Clinton’s most important tip for women: thick skin.

“Grow skin like a rhinoceros,” she said to New York University students on Thursday, according to Politico. She said she got that piece of advice from Eleanor Roosevelt, and it’s something women need to follow to make their way in the world.

“When you look at the challenges of being a change-maker and being willing to buck the establishment, it’s important to learn how to take criticism seriously but not personally, and to do that you have to be willing to hear what others who are your critics are saying and to evaluate where they are coming from,” Clinton said, according to Politico.

Read the full article at politico.com.