Sustainable development requires not only vision but also concrete actions.
The past is a shadow that follows us everywhere.
This is the map that shows us where we're going. And this is the map that shows us where we've been. And it's never ever ugly.
Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom, in the pursuit of truth as in the endeavour after a worthy manner of life.