A lot of executives act like their time is worth more than anyone else's. But I always respect an employee who guards his or her time, even from me.

Collecting is more than just buying objects.

You can have great teachers, but if you don't have a good principal, you won't have a good school.

If you have poor management that's not doing the right job, you end up with unions filling the void and... page after page of work rules and thicker and thicker contracts.

No one ever made a million bucks by being cautious or timid or reasonable.

Anything I do, I spend a lot of time. I do it with passion and intensity. I want to be in charge.

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.