When I was first running marathons, we were sailing on a flat earth. We were afraid we'd get big legs, grow mustaches, not get boyfriends, not be able to have babies. Women thought that something would happen to them, that they'd break down or turn into men, something shadowy, when they were only limited by their own society's sense of limitations.

When I forgave Jock Semple on Heartbreak Hill, I also got really cross with women. I couldn't understand why they didn't get it, why they didn't know that running was so cool and why they weren't in the race as well. Then I thought to myself "How stupid can you be? You've had so much encouragement and motivation and these women haven't."

When I finished the Boston race in 1967, there were two things I wanted to do. I wanted to become a better athlete because my first marathon was 4:20. In those days, that was considered a jogging time and I knew people were going to tease me. But I was more fascinated with what women could do if they only had the chance.

I do forgive people when they get it right, even people who in the past I thought were unforgivable.

1967 race in Boston changed not just my life, but millions of women's lives. There are also things that, when you get older, resonate more.

I always say that talent and capability is everywhere, all it needs is opportunity.

What I've done in this older part of my life is I started foundation called 261 Fearless, named after my old ,1967 Boston Marathon, bib number.I thought we could create training and a communicative, non-judgmental platform, in a movement to let them know they're not alone. Then fearless women can reach out to help women who are fearful and take that first step using the vehicle of running because it's transformational. It works for every woman every time.