If all you succeed in doing in life is getting rich by buying little pieces of paper, it's a failed life. Life is more than being shrewd in wealth accumulation.

There are a lot of things in life way more important than money. All that said, some people do get confused. I play golf with a man who says, " What good is health? You can't buy money with it."

In Gillette's case, they keep surfing along new technology which is fairly simple by the standards of microchips. But it's hard for competitors to do. So they've been able to stay constantly near the edge of improvements in shaving.

Organized common (or uncommon) sense -- very basic knowledge -- is an enormously powerful tool. There are huge dangers with computers. People calculate too much and think too little.

Of course the self-serving bias is something you want to get out of yourself. Thinking that what's good for you is good for the wider civilization and rationalizing all these ridiculous conclusions based on this subconscious tendency to serve one's self is a terribly inaccurate way to think.

Remember that reputation and integrity are your most valuable assets - and can be lost in a heartbeat.

If (investing) weren't a little difficult, everybody would be rich.