“Regret comes in all shapes and sizes. Some are small like when we do a bad thing for a good reason. Some are bigger like when you let down a friend. Some of us escape the pain of regret by making the right choice. Some of us have little time for regret because we're looking forward to the future. Sometimes we have to fight to come to terms with the past, and sometimes we bury our regret by promising to change your own ways. But, our biggest regrets are not for the things we did - but, for the things we didn't do. Things we didn't say that could've save someone that we care about. Especially when we can see the dark storm that's headed their way."
- Lucas Scott, One Tree Hill
"Regret for the things we did can be tempered by time; it is regret for the things we did not do that is inconsolable."
- Sidney J. Harris