"If I should cease to think of you at all for a prescribed time, I should find I could keep it up indefinitely. [...] You know that what you ask is impossible [...] I'm capable of nothing with regard to you," he went on, "but just of being infernally in love with you. If one's strong one loves only the more strongly."
January 1, 1970
https://en.wikiquote.org/wiki/Forgetting