The market is never wrong; opinions often are.

The past is not behind us; it is within us.

And I hope you will come back here to Harvard 30 years from now and reflect on what you have done with your talent and your energy. I hope you will judge yourselves not on your professional accomplishments alone, but also on how well you have addressed the world's deepest inequities…on how well you treated people a world away who have nothing in common with you but their humanity.

The surest way to corrupt a youth is to instruct him to hold in higher esteem those who think alike than those who think differently.