Very good message. This goes in line with the idea that we can not control our life circumstances, but we can control how we react, which makes all the difference.
We hear countless stories of great individuals who were told they would never amount to anything. Instead of using that anger for unproductive actions, they used it to fuel them thorough hardships until they arrived at their present success.
I recently wrote an article titled, The Life-Threatening Voyage. It also explores motivation and determination. I think you may find it interesting. Let me know what you think!