Johannes Kepler, despite being a Protestant, was in some ways more obviously faithful than Galileo to religion (though Galileo makes arguments similar, if less memorable, to the following two passages). However, he did not shy away from gentle disagreement with those who he thought used the wrong sort of evidence or argument in scientific matters. He wrote a response to the use of Ecclesiastes 1:4 as evidence for a non-moving earth: '"A generation passes away, and a generation comes, but the earth stands forever." Does it seem here as if Solomon wanted to argue with the astronomers? No, rather, he wanted to warn people of their own mutability, while the earth, home of the human race, remains always the same [...] You do not hear any physical dogma here. The message is a moral one, concerning something self-evident and seen by all eyes but seldom pondered. Solomon therefore urges us to ponder. Who is unaware that the earth is always the same? Who does not see the sun return daily [...] So Solomon, by mentioning what is evident to all, warns of that which almost everyone wrongly neglects...." (Selections from Kepler's Astronomia Nova, translated by William H. Donahue, qtd. in Philosophy of Science: An Historical Anthology.)
Kepler also has a highly useful couple of short passages immediately following this one. First, there is Advice to Astronomers. Then there is Advice for idiots:
"But whoever is too stupid to understand astronomical science, or too weak to believe Copernicus without affecting his faith, I would advise him that, having dismissed astronomical studies and having damned whatever philosophical [i.e., scientific] opinions he pleases, he mind his own business and betake himself home to scratch in his own dirt patch, abandoning this wandering about the world. He should raise his eyes (his only means of vision) to this visible heaven and with his whole heart burst forth in giving thanks and praising God the Creator. He can be sure that he worships God no less than the astronomer, to whom God has granted the more penetrating vision of the mind's eye, and an ability and desire to celebrate his God above those things he has discovered." (ibidem)
* Yes, there is one person who will say "I can conceive it, therefore it must be true!" Yes, that person may consider himself recognized and may sit down now
