Dipping into the pitcher of the past, his father often said, can only sour the cup of the present.

I withdrew a small card from the pouch. The front of it was filled with lines of elegant, hand-lettered script. "What does it say?" Dad asked, leaning forward. "The Four Remembers of Life," I read. "Number one: Remember, you are unique. Number two: Remember, there is purpose to your life. Number three: Remember you are free to choose what you are and what you become. And number four: Remember, you are not alone.