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

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.

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

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

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.

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

The American Civil War produced carnage that has often been thought reserved for the combination of technological proficiency and inhumanity characteristic of a later time.