And again, a new day begins. And when the sun rises, the world will watch in horror run over its fields four horsemen enemies of man.

New Zealand—antipodal of Spain—with 4.5 million people, has fifty million sheep, more than ten sheep for every human. The municipality of Lorca, in Spain, has about 96,000 inhabitants and one million pigs.

Our society is fed with fertilizers, is supported by steel bones and concrete muscles, its blood is diesel and gasoline, and its skin is plastic. All of them are made with fossil fuels.

Seventy thousand years ago Homo sapiens was still an insignificant animal minding its own business in a corner of Africa. In the following millennia it transformed itself into the master of the entire planet and the terror of the ecosystem (Yuval N. Harari.)

Longevity is related to economy, even in the most developed countries, like the U.S.A. that is not a good example of life expectancy in comparison with other developed countries.

Not all human adaptations to the environment stem from its radical modification by our species or from genetic mutations. We are a resourceful species, and our adaptability increases because of our technological and cultural capacity.

We have frequently adapted the nature to us by radically modifying it, but our species also changed since it left the African savannas.

According to Edward O. Wilson, science and religion are irreconcilable.

In Europe, the church was the biggest owner of properties during the middle ages. No single noble or king was richer than the church.

With the growth of religions, they became cosmopolitan organizations with the same forms of functioning, hierarchy, and content anywhere.

Religions grew in complexity and changed their main functions with the changes from hunter-gatherer bands to tribes, chiefdoms and states.

One inconsistency in religions is the belief of an almighty god and at the same time, on an evil being who annoys the god as much as he can

Our schizophrenic societies progress by knowledge but survive on inspiration derived from the very beliefs which that knowledge erodes

In 2018, the richest 1% of the world's population, about eighty million people, owned half the wealth of the planet.

We can detect multiple characteristics of modern societies when the first chiefdoms consolidated into states.

Agriculture began in various places of the world. It appeared first with the cultivation of wheat, rye, and barley in the Fertile Crescent.

With farming began the artificial selection of species, which Charles Darwin used as an introduction to natural selection

Orwell about nationalism: "There is no limit to the follies that can be swallowed if one is under the influence of feelings of this kind..."

"History makes no sense without prehistory, and prehistory makes no sense without biology." Edward O. Wilson

"I've always maintained that in this business, you're only as good as the other fellow thinks you are." James Cagney.