Chapter III: Astronomy

I. The Old Sacred Theory of the Universe.
The early Church's conviction of the uselessness of astronomy
The growth of a sacred theory--Origen, the Gnostics, Philastrius,
Cosmas, Isidore
The geocentric, or Ptolemaic, theory, its origin, and its
acceptance by the Christian world
Development of the new sacred system of astronomy--the
pseudo-Dionysius, Peter Lombard, Thomas Aquinas
Its popularization by Dante
Its details
Its persistence to modern times

II. The Heliocentric Theory.
Its rise among the Greeks--Pythagoras, Philolaus, Aristarchus
Its suppression by the charge of blasphemy
Its loss from sight for six hundred Years, then for a thousand
Its revival by Nicholas de Cusa and Nicholas Copernicus
Its toleration as a hypothesis
Its prohibition as soon as Galileo teaches it as a truth
Consequent timidity of scholars--Acosta, Apian
Protestantism not less zealous in opposition than
Catholicism--Luther Melanchthon, Calvin, Turretin
This opposition especially persistent in England--Hutchinson,
Pike, Horne, Horsley, Forbes, Owen, Wesley
Resulting interferences with freedom of teaching
Giordano Bruno's boldness and his fate
The truth demonstrated by the telescope of Galileo

III. The War upon Galileo.
Concentration of the war on this new champion
The first attack
Fresh attacks--Elci, Busaeus, Caccini, Lorini, Bellarmin
Use of epithets
Attempts to entrap Galileo
His summons before the Inquisition at Rome
The injunction to silence, and the condemnation of the theory of
the earth's motion
The work of Copernicus placed on the Index
Galileo's seclusion
Renewed attacks upon Galileo--Inchofer, Fromundus

IV. Victory of the Church over Galileo
Publication of his Dialogo
Hostility of Pope Urban VIII
Galileo's second trial by the Inquisition
His abjuration
Later persecution of him
Measures to complete the destruction of the Copernican theory
Persecution of Galileo's memory
Protestant hostility to the new astronomy and its champions

V. Results of the Victory over Galileo.
Rejoicings of churchmen over the victory
The silencing of Descartes
Persecution of Campanella and of Kepler
Persistence and victory of science
Dilemma of the theologians
Vain attempts to postpone the surrender

VI. The Retreat of the Church after its Victory over Galileo.
The easy path for the Protestant theologians
The difficulties of the older Church.--The papal infallibility
fully committed against the Copernican theory
Attempts at evasion--first plea: that Galileo was condemned not
for affirming the earth's motion, but for supporting it from
Scripture
Its easy refutation
Second plea: that he was condemned not for heresy, but for
contumacy
Folly of this assertion
Third plea: that it was all a quarrel between Aristotelian
professors and those favouring the experimental method
Fourth plea: that the condemnation of Galileo was "provisory"
Fifth plea: that he was no more a victim of Catholics than of
Protestants
Efforts to blacken Galileo's character
Efforts to suppress the documents of his trial
Their fruitlessness
Sixth plea: that the popes as popes had never condemned his
theory
Its confutation from their own mouths
Abandonment of the contention by honest Catholics
Two efforts at compromise--Newman, De Bonald
Effect of all this on thinking men
The fault not in Catholicism more than in Protestantism--not in
religion, but in theology