For in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's futures. And we are all mortal.

"El pasado es un país extranjero; allí hacen las cosas de otra manera."

Waste is a design flaw, and it's our job to fix it.

The creation of a modern state is a complex and difficult process that requires the development of strong institutions.

Positive psychology is not just about feeling good, it's about the good life - a life with engagement, meaning, and positive relationships.