“What I learned is that everyone in your life has an invisible number on their foreheads, which represents the number of times you will see them again. It might be zero or one, or it could be a thousand, but it’s a number. We don’t have unlimited time with people. I don’t mean that in a morbid way. It’s a lesson for us to appreciate people while we can. Don’t put people off. Don’t think you can make up the time later.”