Input (grade 10): The phrase is commonly attributed to SÃ ren Kierkegaard; however, he himself never used the term, as he referred to a leap as a leap to faith.
Output (grade 9): A Leap of faith commonly refers to believing something that can not be touched or proved by science, for which there is no evidence. Usually the term is attributed to SÃ ren Kierkegaard, even though he never really used it.