Struggles only move forward when decent men and women step forward and say, 'enough is enough and no more.'

In Durban, where I was born and grew up, and all over Africa, Nelson Mandela was a hero! Now he is a hero to the world.

Nelson Mandela once said "I can't help it if the ladies take note of me; I'm not going to protest."

Nelson Mandela also spoke about how, as a human being, he's made mistakes.

This week we saw progressive business and faith leaders making strong commitments that are moving ahead of what world leaders promised today. The leaders of major economies must be bolder than they were today in providing a vision for 100% renewable energy for all.

One of the things that I noticed with my own eyes was Nelson Mandela ability to engage with kings and queens and heads of state on the one hand, and his ability to engage with ordinary people, equally comfortably.

Struggles only move forward when decent men and women step forward and say, 'enough is enough and no more.'