C. S. Lewis
He is best known as the author of The Chronicles of Narnia, but he is also noted for his other works of fiction, such as The Screwtape Letters and The Space Trilogy, and for his non-fiction Christian apologetics, including Mere Christianity, Miracles, and The Problem of Pain.
“Love is not affectionate feeling, but a steady wish for the loved person's ultimate good as far as it can be obtained.” - C. S. Lewis on Love - https://billmuehlenberg.com/2017/02/22/c-s-lewis-love-rightly-considered/