Some letters are never meant to be sent.
In 1946, Richard Feynman wrote a love letter to his wife, two years after her death --He never sent it.
Last line: “I love my wife. My wife is dead.”
“Why are we afraid of the first time? Every day in life is a first time. Every morning is new. We never live the same day twice. We're never afraid of getting up every morning. Why?”