“He who is aware of himself and of everything,
who feels the relationship with all other beings, has a culture”.
With this thought, the Italian philosopher Antonio Gramsci, already in the last century, had anticipated the concept of sustainability, so pregnant in the pandemic era in which we live. In fact, what is environmental sustainability if not the awareness of one's role in a world where resources are finite and the negative effects generated by human activities risk being irreversible? To put it even more clearly: sustainability is culture, and the culture of the third millennium can only be sustainable.