“People who say "It is better to have loved and lost than never to have loved at all" never felt a broken heart.”

Manuscript Found in Accra (2012), Love has always passed me by

Source: Night Embrace

Source: Tiger Lily

Act II, scene i. Precedent for Alfred Tennyson's more famous: "'Tis better to have loved and lost than never to have loved at all"
The Way of the World (1700)

Source: The Bluest Eye

Say
Song lyrics, From the film The Bucket List (2007)

Rich Dad Poor Dad: What the Rich Teach Their Kids About Money-That the Poor and the Middle Class Do Not!

Source: That Hideous Strength (1945), Ch. 7 : The Pendragon, section 2