The biggest barrier we've seen to student progress is this: School policies and practices often prevent good teachers from doing great work and even dissuade some talented Americans from entering the profession. This needs to change.

I am old enough to remember when America's K-12 public schools were the best in the world. I am a proud graduate of them, and I credit much of my success to what I learned in Detroit Public Schools and at Michigan State University.

Civilizations are not remembered by their business people, their bankers or lawyers. They're remembered by the arts.

The first dream I had was just to get a college education. I got through college in three years, taking extra classes in summer school.

Collectors become obsessive and then addicted. You become addicted to art and you can't live without it.

Research – and using what you learn from it to analyze every situation – is what separates being unreasonable from being irrational.

You always learn lessons in business.