Galileo Galilei, Andrea Frova, Mariapiera Marenzana (2006). “Thus Spoke Galileo: The Great Scientist's Ideas and Their Relevance to the Present Day”, p.201, Oxford University Press 55 Copy quote

Galileo Galilei (1967). “Dialogue Concerning the Two Chief World Systems, Ptolemaic and Copernican, Second Revised Edition”, p.101, Univ of California Press 90 Copy quote

Galileo Galilei (1967). “Dialogue Concerning the Two Chief World Systems, Ptolemaic and Copernican, Second Revised Edition”, p.59, Univ of California Press I have been judged vehemently suspect of heresy, that is, of having held and believed that the sun in the centre of the universe and immoveable, and that the earth is not at the center ...

Galileo Galilei (1967). “Dialogue Concerning the Two Chief World Systems, Ptolemaic and Copernican, Second Revised Edition”, p.101, Univ of California Press By denying scientific principles, one may maintain any paradox.

Galileo Galilei (1967). “Dialogue Concerning the Two Chief World Systems, Ptolemaic and Copernican, Second Revised Edition”, p.5, Univ of California Press 20 Copy quote

Galileo Galilei (1997). “Galileo on the World Systems: A New Abridged Translation and Guide”, p.350, Univ of California Press Nature's great book is written in mathematics.

Galileo Galilei Men , Heaven , Holy I therefore concluded, and decided unhesitatingly, that there are three stars in the heavens moving about Jupiter, as Venus and Mercury about the Sun; which at length was established as clear as daylight by numerous other observations.

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Galileo Galilei Eye , Biblical , Thinking Essay published in 1615, in response to enquiries of Christina of Tuscany, as quoted in "Aspects of Western Civilization : Problems and Sources in History" by Perry McAdow Rogers, (p. 53), sourcebooks.fordham.edu. 1988.

Galileo Galilei Language , Mathematics , Written In my studies of astronomy and philosophy I hold this opinion about the universe, that the Sun remains fixed in the centre of the circle of heavenly bodies, without changing its place; and the Earth, turning upon itself, moves round the Sun.