But in 1632 Galileo ventured on the publication of his work entitled "The System of the World," its object being the vindication of the Copernican doctrine.

He was again summoned before the Inquisition at Rome, accused of having asserted that the earth moves round the sun.

He was declared to have brought upon himself the penalties of heresy.

On his knees, with his hand on the Bible, he was compelled to abjure and curse the doctrine of the movement of the earth.

What a spectacle! This venerable man, the most illustrious of his age, forced by the threat of death to deny facts which his judges as well as himself knew to be true! He was then committed to prison, treated with remorseless severity during the remaining ten years of his life, and was denied burial in consecrated ground.