At the finish line of the 1967 Boston Marathon, one crabby journalist said it was just a one-off deal and women weren't going to run. Only a 20-year-old who had just run a marathon and was shot full of endorphin would say this but I said that there's going to come a day in our lives when women's running is as popular and as men's.

I could feel my anger dissipating as the miles went by--you can't run and stay mad!

Jock Semple said "Oh the women ran well today the Boston Marathon and they deserve to be in the race." I had to laugh. I said "Well it took us five years but anyway, we're here." It pretty much changed everything.

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 don't have any kids of my own, quite by choice. There are two reasons for that. One, I had a sense of obligation for what my life would be and a vision of how to get that accomplished and it didn't include children. It's not that I don't like them, it's just that if you have them, they deserve 100 per cent of your attention.

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.

A lack of forgiveness is a waste of time and it's very enriching to forgive and move on but those are things that come with time.