This is a famous quote
that he uttered under his breath (according to legend
) after the Catholic
Church (the Inquisition
) forced him to renounce the Copernican
theory that the Earth
moves around the Sun
. The original Italian
phrase was "Eppur si muove".
The conflict arose from his publishing a book challenging the physics of Aristotle
, which had long since crystallized as accepted dogma
of the church. By challenging accepted dogma, he was committing heresy
in the eyes of the church, and was ultimate
ly placed under house arrest
for the remainder
of his life.