Ask yourself whether you have earned the right to have an opinion. Opinions are easy to produce, so bad ones abound. Knowing that you don't know something is nearly as valuable as knowing it. The worst situation is thinking you know something when you don't.

I think the President of the United States must operate by rules. I think our judicial system must operate by the rules. You have to operate by the rules of the system, and if you don't, if you pull rank, then you lose all your credibility.

Forget about what the technology is. Just understand the motivation behind it.

When two intelligent parties disagree, that's when the potential for learning and moving ahead begins.

For every mistake that you learn from you will save thousands of similar mistakes in the future, so if you treat mistakes as learning opportunities that yield rapid improvements you should be excited by them. But if you treat them as bad things, you will make yourself and others miserable, and you won't grow.

Know what your people are like, and make sure they do their jobs excellently.

Some people have subject matter expertise in one thing. Some people tend to be creative but not reliable, and others are reliable but not creative. Everybody has different dimensions.