I came back to work when my children were two months old. At that early age, they seem to have little awareness of anybody but their Raggedy Ann dolls, so it wasn't a matter of them missing me. I was missing them.

I've come to recognize what I call my 'inside interests.' Telling stories. And helping people tell their stories is a sort of interpersonal gardening. My work at NBC News was to report the news, but in hindsight, I often tried to look for some insight to share that might spark a moment of recognition in a viewer.

There might be false starts and do-overs.You are entitled to experiment before you find your calling.

Kids learn more from example than from anything you say; I'm convinced they learn very early not to hear anything you say, but to watch what you do.

When I was diagnosed with bipolar disorder the year I turned 50, it was certainly a shock. But as a journalist, knowing a little bit about a lot of things, I didn't suffer the misconception that depression was all in my head or a mark of poor character. I knew it was a disease, and, like all diseases, was treatable.

The years after 50 can be a time of great productivity, meaningful work, pleasure, creativity, and innovation. It's a huge opportunity.