Fidel Castro Ruz:
"This Reflection could be written today, tomorrow or any other day without any risk of being mistaken. Our species is confronting new problems. When I stated 20 years ago at the United Nations Conference on Environment and Development in Rio de Janeiro, that a species was in danger of extinction, I had fewer reasons than today to warn of a danger, one which could perhaps be perceived as 100 years distant. At that time, a few leaders of the most powerful countries were managing the world. They applauded my words out of mere courtesy and placidly continued digging our species’ grave."