"The Bible shows the way to go to heaven, not the way the heavens go."

"Truly, if there were no other way to demonstrate the motion of the Earth, the tides alone would suffice."

"The error of the senses is not less, but rather greater, if we try to correct them by reason without experience."

"I do not believe that the same God who has given us senses, reason and intellect would have us abandon their use."

"With the telescope, I have discovered many things that contradict the ideas of ancient philosophers."