Facebook COO and 'Lean In' author Sheryl Sandberg delivered the commencement address at City Colleges of Chicago in 2014, speaking to a class where many graduates were the first in their families to earn a college degree. She shared that Facebook's offices are covered in red posters with inspiring slogans — 'Fortune favors the bold,' 'Done is better than perfect' — but her favorite reads 'What would you do if you weren't afraid?' Sandberg closed her speech with this challenge, urging graduates not just to reflect on their past achievements but to look to the future with ambition. It was a fitting capstone for a speech built around the theme that self-doubt is the greatest barrier to achievement, and that the same determination that brought these graduates to commencement could carry them far beyond it.