Men are not made religious by performing certain actions which are externally good, but they must first have righteous principles, and then they will not fail to perform virtuous actions.
Martin LutherPrayer is a very precious medicine, one that certainly helps and never fails, if you will only use it.
Martin LutherPeople gave ear to an upstart astrologer who strove to show that the earth revolves, not the heavens or the firmament, the sun and the moon....This fool wishes to reverse the entire science of astronomy; but sacred scripture tells us [Joshua 10:13]that Joshua commanded the sun to stand still, and not the earth.
Martin LutherIf you young fellows were wise, the devil couldn't do anything to you, but since you aren't wise, you need us who are old.
Martin Luther