There, by scientists who are at heart, they are real, a love for truth that leads to a requirement in verification of assertions called skepticism. This requirement, which in the eyes of some is an attitude of sin, but the layout becomes more honest in our commitment to knowledge. The skepticism but must also apply to denial at any level. The absence of evidence, not proof of absence. Often, the scientist takes to reach the verification tests. While the scientific certainty does not reach the proven veracity of a statement, the attitude would be unscientific to say it, but also the attitude would be unscientific to deny it without evidence. Often, though there is no evidence, there are signs, suspicions, models, simulators, plausible hypotheses in these cases, the consensus is closer to the truth of everything we possess, although we are still only beginning of scientific method.
There are also those who seek to demagoguery with science, and often elaborate postulates pseudològics, sophists, to deny the scientific evidence is opposed to their economic interests, religious or political. Sometimes even scientists have come to bribe, to deny subsidies to those who conduct research lines against their lobbyists, to fund research to try to prove what good would that be shown, which is often unprovable . Thus we have the creationists, the deniers of the pernicious effects on climate of the discharge of CO2, which aim to demonstrate the character pathology of homosexuality, those who pretend to explore the genome showed that some races are inferior, and many other alchemists of the century, starting with "how they want it to be natural, rather than begin "how nature is."
was not this, in the case of Carl Sagan, one of my heroes.
Humanist. Passionate about nature and science. Skeptic. Respects the human person. Feather afuada against superstition and ignorance, against all the strings over the centuries has linked people in the dark or the interests of the powerful medieval terror threats. He was an atheist, but a friend of many believers, and shortly before his death, when you wear the disease to more order had not thinned and aged by far, was able to write these words, worthy of his character.
"Five thousand people prayed for me for Easter crafts of the Cathedral of St. John the Divine God of the New York City, the largest church the cistiandat. A Hindu priest conducted a prayer vigil on the banks of the Ganges. The Imam prayed for North America for my healing. Many Christians and Jews have written to me to notify me of their prayers. Although I do not think God, if any, altered, because of the prayers, their plans, I am grateful beyond any weight at all (including all that I have not known) that they pray for my recovery. "
BILLION AND BILLION
Carl Sagan
I recommend with some longing dissemination of their works science. Undoubtedly have become the best books on science and method I have ever read (especially in my teens), the most well explained and the most motivating:
"Billions and billions " the drafting of which was unable to finish because he died, and was finished as an epilogue to his partner Ann Druyan," and published posthumously, where a review about the scientific controversies current and explaining clearly the essence of the scientific problem of climate change and other effects pernicious technology on the environment. They are very emotive writings on the end of the book narrates the process of the latter stages of his illness.
"Cosmos" A book summary of his television series about the universe, life and its origin and history of science.
"The Cosmic Connection " Where he talks about his work in the process of astronomical research, and the techniques of radio astronomy to search for electromagnetic signals from alien civilizations. There is also a spot in the most basic science. Very useful for high school students.
"The world and his demons" A bath wisdom and logic against superstition and manipulation of the masses by xerrotaires pseudoreligiosos and pseudoscientific.
I end with the last words he left published the last of his hand, in edited book:
"I just hope the rest"
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