If you want to save the world, you have the save yourself first. For me global sustainable development goes hand in hand with personal development. This subject might not interest you but for those who have experienced a lot of suffering in their lives, and who wants to live a more happy life, should listen. I used to live in darkness while being depressed and happiness was something I chose to become. Not only happier but the happiest version of myself I could possibly be. Today I’m doing very well but I can see that a lot of people around me are struggling. I hope this will inspire you to work on your happiness too!