We found that a parabola was at the same time a teaching presented in an allegorical way in religious books and a conical plane. Going inside mathematical definitions allowed us to increase amazement before something such us simple and big as the social work that we enjoy nowadays, and that was cumulated by human race. In twenty years of scholar studies we want to recover all human knowledge.

What is Real? The subjective and the objective fact
Manuel de la Herrán Gascón

The popular criterion presuppose the existence of the objective and solid fact as the generator of the doubtful subjetive experience. But the process is just the inverse, and their characteristics the opposed. The subjetive experience (I see a tree) provoke us the creation of one hypothesis (There is a tree). The subjetive experience is real, there are no doubt about it. However the objective hypothesis is fruit of a combination of imagination and perception, susceptible of error, and always subject to revision. The existence of the perception is a certainty. The existence of the perceived fact is a hypothesis.

The currently predominant scientific vision of the world originated in the "scientific revolution" begun in the XVI and XVII centuries by Copernicus, Galileo and Newton's theories. The technical and economic boom that produced the subsequent industrial revolution drove science towards a mechanistic, utilitarian approach to nature, the purpose of which was (and still is) to predict and control the studied phenomena.

The human species is an animal species of Cordata type, Vertebrata subtype, Mammalian class, Primates order, Hominoidea superfamily, Hominida family, Homo genre, sapiens species. As we observed, it is an animal perfectly classified and placed in the taxonomic groups, according to its morphological and anathomical characteristics.

Timothy Ferris develops in this book the following idea: human mind is composed by several entities. Decisions are taken by the common activity of them all. There is not a central entity to which all the others are subordinate.

Nevertheless it exists something that we can call the "interpreter", that interprets the common decision as taken just by himself. This interpreter situated in the center related to language, would be the highest exponent of "I", but of a false one. This interpreter is essentially a liar, but it is useful and even essential for survival, and, if it is disconnected, mind can be opened to authentic truth.

From the very start, Darwinist theory suffered from significant weaknesses acknowledged by its author. Both the observation of natural species and the evidence derived from the fossil record were in direct conflict with two of its core concepts, natural selection and gradual change, giving rise to problems that deeply troubled Darwin and some of his followers.

Chimpanzees are able to understand oral language and communicate among them and with human beings through the language of signs (for deaf people). Besides, as Roger Fouts describes it, they think and act in such a similar way as human beings do.

We like to think that science is the noble search for objective knowledge, and that it is always serving truth, but actually, scientists represent the prejudices of the time they are living. Intellectual fanaticism is very dangerous because it is possible to transmit false facts as knowledge, and these false ideas are liable to become the base for building a moral border line. Unfortunately, History has taught us that the union of arrogance and culture can lead the exiled from the moral universe of a culture, to a nightmare.

Since Aristote, Science has served morality. The Greek philosopher established that men were the most perfect beings created, followed, in this order, by elephants, dolphins and women. It took two thousand years to take a man the right to hit his wife away. [...] But the moral border line in Occident did not exclude just women but also African, Asiatic and Indian people [...] The height of shame was reached in 1904, during the universal exhibition in Saint Louis, where a group of pygmy and other races of "lower culture and intelligence" were exhibited in cages shared with chimpanzees and monkeys.

Our ethics are based in the difference between those who have the right to enter in our moral universe and those who have not [...] What would happen if we include in it any intelligent being, conscious of his own identity, able to maintain familiar relationships and have feelings? We would be immediately obliged to recognize the great primates -chimpanzees, gorillas and orangutans- as beings worthy of belonging to our community, since they all have these characteristics

Greene emphasis that gravity conserves entropy, that the total entropy of the universe sums to zero. From this point of view evolution can be understood as an universal negentropic process that evolves to the zero entropy of the universe.