I am often asked if leaders are born or made. The answer, of course, is both. Some characteristics, like IQ and energy, seem to come with the package. On the other hand, you learn some leadership skills, like self-confidence, at your mother's knee, and at school, in academics and sports. And you learn others at work-trying something, getting it wrong and learning from it, or getting it right and gaining the self-confidence to do it again, only better.

The idea of let's all share the pain equally, or let's freeze salaries altogether - it's ass-backwards. It's absolutely ass-backwards.

I think every leader has an obligation - the absolute obligation - to treat everyone fairly. But they also have the obligation to treat everyone differently. Because people aren't all the same, and the last thing you ever want to do, in my opinion, is let the best in your organization be treated like the worst in your organization. It does nothing for your future.

If you're not in Germany, you're not in Europe. And if you're not in Asia, you're nowhere.

In the end, your integrity is all you've got.

Failing to differentiate among employees — and holding on to bottom-tier performers — is actually the cruelest form of management there is.

Celebrating creates an atmosphere of recognition and positive energy. Imagine a team winning the World Series without champagne spraying everywhere. And yet companies win all the time and let it go without so much as a high five. Work is too much a part of life not to recognize moments of achievement. Make a big deal out of them. If you don't, no one will.