Actually, what we really need to remember about Galileo is that most of the people who use his name in argument could barely spell it, let alone tell us what actually happened to the man. His case is used over and over again because critics can't think of any other scientists who were mistreated by the Church. And in this instance they're right. There may have been some people in the scientific world who did not enjoy Church support and were even challenged by Catholicism but, sorry to disappoint, there weren't very many of them. The Church has been the handmaiden of science and scientific discovery, and those who refer to Galileo tend to forget that Louis Pasteur, the inventor of pasteurization, was a devout Catholic, as was Alexander Fleming, who gave us penicillin. Or Father Nicolaus Copernicus, who first proposed the theory of the earth revolving around the sun - this was precisely what Galileo stated, but Copernicus taught it as theory and not fact. Or Monsignor Georges Henri Joseph Édouard Lemaître, a Belgian Roman Catholic priest and professor of physics at the Catholic University of Leuven, who proposed what became known as the Big Bang theory of the origin of the Universe. In the field of acceleration, Fr. Giambattista Riccioli changed the way we understand that particular science; the father of modern Egyptology was Fr. Athanasius Kircher, and the Yugoslavian Fr. Roger Boscovich was the founder of modern atomic theory.

The Church, though, has always held up a mirror in which society can see reflected some of its uglier aspects, and it does not like what it sees. Thus it becomes angry but not, as it should be, with itself, but with the Church. This is particularly noticeable when it comes to issues of personal gratification and sexuality and especially, apart from abortion, when issues of artificial contraception, condoms, and the birth-control pill are discussed. The Church warned in the 1960s that far from creating a more peaceful, content, and sexually fulfilled society, the universal availability of the pill and condoms would lead to the direct opposite. In the decade since, we have seen a seemingly inexorable increase in sexually transmitted diseases, so-called unwanted pregnancies, sexuality-related depression, divorce, family breakdown, pornography addiction, and general unhappiness in the field of sexual relationships. The Church's argument was that far from liberating women, contraception would enable and empower men and reduce the value and dignity of sexuality to the point of transforming what should be a loving and profound act into a mere exchange of bodily fluids. The expunging from the sexual act the possibility of procreation, the Church said, would reduce sexuality to mere self-gratification. Pleasure was vital and God-given but there was also a purpose, a glorious purpose, to sex that went far beyond the merely instant and ultimately selfish.

Lest we forget, the birth of modern physics and cosmology was achieved by Galileo, Kepler and Newton breaking free not from the close confining prison of faith (all three were believing Christians, of one sort or another) but from the enormous burden of the millennial authority of Aristotelian science. The scientific revolution of the sixteenth and seventeenth centuries was not a revival of Hellenistic science but its final defeat.

...more men and women were slaughtered in a couple of weeks of the terror of the atheistic French Revolution than in a century of the Inquisition.

We do not perceive what is "out there," rather we perceive what is "in here." Our senses can only inform us of their own status. They can inform us of the electrical status of neurons or the physical or the chemical status of the receptors. The outside world is never taken into our consciousness. The outside world is rather our own creation, psychologically synthesized from the mass of sensations that envelope us. In many respects, the ultimate question that perception must ask was stated by John Stuart Mill in 1865. He asked, "What is it we mean, or what is it which leads us to say, that the objects we perceive are external to us, and not a part of our own thoughts?" That remains, perhaps, the ultimate, unresolved perceptual puzzle.