Simplify the following text for a Grade 8 native English-speaking person.
Original: 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 .
Simplified: 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 .