If you don't pursue what you think will be most meaningful, you will regret it. Life is long. There is always time for Plan B. But don't begin with it.

I’m not the woman president of Harvard, I’m the president of Harvard.

A leader has to keep saying the same things over and over again.

The ability to recognize opportunities and move in new - and sometimes unexpected - directions will benefit you no matter your interests or aspirations.

Leadership is about moving people from where they are to where you hope they'll go.

If you don't pursue what you think will be most meaningful, you will regret it. Life is long. There is always time for Plan B. But don't begin with it.

Look to the past to help create the future. Look to science and to poetry. Combine innovation and interpretation. We need the best of both. And it is universities that best provide them.