Tertullian was a Church Father of the late second century. He’s sometimes called the father of Latin Christianity. He is also frequently quoted as a person who thought that reason and faith have little if anything to do with each other. The quote is “I believe because it is absurd.” The suggestion that usually accompanies the quote is that to believe against all reason, to believe things that rational thought tells us are just unreasonable, and to thereby have faith in God, is some sort of virtue that Christianity promotes.