Here's the truth. Your teens and twenties are your Plan A. At 50, you're assessing whether Plan B or Plan C or any of the other plans you hatched actually worked. Your sixties and seventies, they're an improvisation.

During my teens and early 20s, I proved to be anything but what most people expected Billy Graham's son to be. I'm so thankful he never gave up on me or quit loving me.

In my teens, I developed a passionate idolatry for a teacher of English literature. I wanted to do something that he would approve of more, so I thought I should be some sort of a scholar.

The scientific content of Genesis 1-11 holds special significance for me because it revolutionized my thinking and, thus, changed my life's direction. Until I reached my late teens, my singular passion was science, astronomy in particular. My life's purpose was to learn more about the universe; nothing beyond that really interested me.

A lot of what the 'Culture' is about is a reaction to all the science fiction I was reading in my very early teens.

I do everything in my power to promote positivity however and whenever I can; and, constructively and softly, try to encourage tweens and teens that if they want to be part of a dialogue on my social platforms, there is an expectation that they do so with poise and respect.

Teens think listening to music helps them concentrate. It doesn't. It relieves them of the boredom that concentration on homework induces.

In my teens, I fell in love with the movies.

Starting in my teens, I was always standing on the corner near our apartment singing harmony with friends. We'd also go to the park and sing under the bridge near the lake for the echo. When it was cold out, we'd stand in the little heated lobby in the project's administration building, where my mom paid the rent each month.

I started to get quite bad panic attacks when I was in my late teens, and I began running because I wanted to do everything I could before going down the medical route.

Learning to cook at school gave me the confidence to experiment in the kitchen when I left home in my late teens - I wasn't intimidated by it.

One time, when I was in my teens, jamming in a Kansas City club, I was doing all right until I tried doing double tempo on 'Body and Soul.' Everybody fell out laughing. I went home and cried and didn't want to play again for three months.

After graduation, I wanted to work for 'Sassy', which I loved, but it had folded. So I wound up at 'Seventeen' for three years on staff and two as a contributor, and I wrote these great stories that nobody ever believes 'Seventeen' does. Serious stories for teens about social justice issues - gun control, migrant farm workers.

Fitness has been a part of all my life since I was a young child. I started dancing ballet and doing yoga when I was three, before stopping ballet at five to start playing soccer and tennis instead. That lasted until my early teens.

As the proud father of two teens and past Chairman to the Presidents Council on Physical Fitness and Sports, I am committed to educating parents and especially young people on ways to live a long, healthy and active life.

It wasn't being an alcoholic - it was going wild. It happened when I got famous. It was like having my teens in my early thirties: blotting out your life, not having to think about anything.

The truth is that those who join gangs - more often than not they are young men in their later teens - often do come from the most difficult family backgrounds, from an environment where they feel neglected and unwanted. Gang membership can bring a perverse sense of belonging which they may not have ever got at home.

When I was in my early to mid-teens, that was a very heavy diet of science fiction and fantasy, so those were the kinds of books I tended to imagine writing someday, or even began to try to write.

I inherited my weight problem from my mum. She was always on diets. If there was a box of chocolates in the house, she'd eat half a chocolate, then put the other half back. She loved me, but she did encourage me to diet in my teens.

In the 20 long, hungry years between my late teens and late 30s I bought in to virtually every new diet and/or exercise regime that hoved into view, particularly at this most vulnerable time for those of us prone to poor body image - a new year.

I wanted to be a writer as a teen... so storytelling was my first love. In my late teens, design became an obsession as I realized that I could express myself through the medium. Much later, when I founded Fuseproject in 1999, our slogan became 'design brings stories to life.'

Looking back, video game design seems a natural fit, although there was no such thing when I was growing up. I built a Tic-Tac-Toe playing machine in my teens which went up in smoke on the night it was scheduled to go to a science fair.

In my teens, I was never part of the cool crowd.

I was never considered cool throughout my teens: a very important time to be accepted by someone, especially your peers. Yes, I had all the screaming women, but the guys hated my guts.