Inside the Basilica was a display on Galileo Galilei. At the end of the post are some of the quotes I liked.
The interior of the Basilica
I love Rome's fountains!
"....God could have made birds fly, with bones of heavy gold, with veins full of living silver, with flesh heavier than lead and with small, heavy wings,
and in so doing He would have demonstrated His power even further;
He could have made fish heavier than lead, (which) is 12 or more times heavier than water,
But He made the first of bones, flesh and the lightest of feathers, and the second as light as water, to teach us
that He enjoys simplicity and easiness..." - Galileo Galilei
"The great Galileo Galilei said that God wrote the book of nature in the form of mathematical language. He was convinced that God gave us the gift of two books: that of the Sacred Scriptures and that of Nature. And the language of nature - thus was his conviction - is mathematics, therefore it is a language of God, of the Creator."
"Now let's see what math is: per se, it is an abstract system, an invention of the human spirit and does not exist as such in its pure form. It is always realized approximately but - as such - it is an intellectual system, is is a great, ingenious invention of the human spirit. What is surprising is that this invention of our human mind really is the key to understanding nature, that nature is really structured in a mathematical way and that our math, invented by our spirit, is really the instrument to be able to work with nature, to put it to our service, to exploit it by means of technical knowledge."
"It seems to me almost incredible that an invention of the human intellect and the structure of the universe should coincide: that the mathematics invented by us really gives us access to the nature of the universe and makes it usable for us. Thus the intellectual structure of the human subject and the objective structure of reality coincide: subjective reason and reason objectified in nature are identical. I think this coincidence between something we have thought and how nature works and behaves, is a great enigma and challenge, because we see that, in the end, there is 'one' reason that connects them both: our reason would not be able to discover this other one if both did not originate from a single identical reason." -- Benedict XVI, St. Peter's Square, April 6, 2006