Should you find yourself in a chronically leaking boat, energy devoted to changing vessels is likely to be more productive than energy devoted to patching leaks.

I would say that life at 84, I am having as much fun as I've ever had in my life. I mean I get to do what I love every day with the people I love-and it just doesn't get any better than that.

We have learned to turn out lots of goods and services, but we haven't learned as well how to have everybody share in the bounty. The obligation of a society as prosperous as ours is to figure out how nobody gets left too far behind.

The key to success is emotional stability.

The big question about how people behave is whether they've got an Inner Scorecard or an Outer Scorecard. It helps if you can be satisfied with an Inner Scorecard.

John Maynard Keynes essentially said, don't try and figure out what the market is doing. Figure out a business you understand, and concentrate.

Knowing the edge of your competency is important. If you think you know more than you do, you will get in trouble.