The Motley Fool provides excerpts from Charlie Munger's Q&A session with stockholders. Munger is Warren Buffett's right-hand man at Berkshire Hathaway, and also chariman of Wesco Financial.

This is a great read for Don't Be Evil because Munger stresses that high ethical standards yield high investment returns. Here are a few snips:

We believe there should be a huge area between everything you should do and everything you can do without getting into legal trouble. I don't think you should come anywhere near that line. We don't deserve much credit for this. It helps us make more money. I'd like to believe that we'd behave well even if it didn't work. But more often, we've made extra money from doing the right thing.

When I was younger, the... major accounting firms were... quite ethical places and nobody got filthy rich... But in the space of 25 years, they sold out to terrible behavior, one little step at a time. Once you start doing something bad, then it's easy to take the next step -- and in the end, you're a moral sewer.

What happened with Martha Stewart was that she heard some news, panicked, and sold the stock. It turns out that if she's just told the truth [about what she did], she'd have been OK....Were I her lawyer, I would have said, "You know, Martha, that's an interesting story and I'm your lawyer, so I'm required to believe you, but nobody else will. So, you're going to have to come up with a different story or you'll have to tell it through a different lawyer because I don't like losing cases."

For more wit and wisdom from Charlie Munger and Warren Buffet, check out these books:

Damn Right! Behind the Scenes with Berkshire Hathaway Billionaire Charlie Munger
Buffett : The Making of an American Capitalist
The Essays of Warren Buffett : Lessons for Corporate America