"I don't regret anything I've ever done; As long as I enjoyed it at the time." - Katharine Hepburn
The joy which we feel at any point of time, shouldn't be regretted because of a bad ending, or dramatic circumstances. The moment we enjoy should stay in the happy bucket.
We are surrounded with so many negative news, and put into bad situations so we need to recall those joyful moments, to boost our energy, and keep smiling and being happy.