We must never fear robbers or murderers. They are dangers from outside, small dangers. It is ourselves we have to fear. Prejudice is the real robber, vice the real murderer. Why should we be troubled by a threat to our person or our pocket? What we have to beware of is the threat to our souls'.
Astronomy, that micography of heaven, is the most magnificent of the sciences. ... Astronomy has its clear side and its luminous side; on its clear side it is tinctured with algebra, on its luminous side with poetry.
It is in the name of Moses that Bellarmin thunderstrikes Galileo; and this great vulgarizer of the great seeker Copernicus, Galileo, the old man of truth, the magian of the heavens, was reduced to repeating on his knees word for word after the inquisitor this formula of shame: "Corde sincera et fide non ficta abjuro maledico et detestor supradictos errores et hereses." Falsehood put an ass's hood on science.
The spirit of God, like the sun, always gives all its light at once. The spirit of man resembles the pale moon, which has its phases, its absences and its returns, its lucidity and its spots, its fullness and its disappearance, which borrows all its light from the rays of the sun, and which still dares to intercept them on occasion.