“Love was the key to understanding all of the mysteries.”
“When you’re in love, you’re capable of learning everything and knowing things you had never dared even to think, because love is the key to understanding of all the the mysteries.”
“When you were in love, you were capable of learning everything and of knowing things you had never dared even to think, because love was the key to understanding all of the mysteries.”
“She is the key to this mystery, a key that I will turn, by hook or by crook.”
“Persistence is the key to solving most mysteries.”
“A dream is the key that unlocks the mysteries of the waking world...”