I like the words of author Seth Godin who wrote this blog post following the death of Nelson Mandela:
“For those that seek to make a change in the world, whether global or local, one lesson of his life is this:
You can make a difference.
You can stand up to insurmountable forces.
You can put up with far more than you think you can.
Your lever is far longer than you imagine it is, if you choose to use it.
If you don’t require the journey to be easy or comfortable or safe, you can change the world.”