Life is fleeting, like a white horse passing through a gap. Some gain and do not cherish, some love but cannot have. Later, I realized that the meaning of a bright future is just goodbye. The meaning of "hope you are well" is that things have changed. "Goodbye" means never seeing each other again. This life is always waiting—waiting for the future, waiting until you're not busy, waiting for time, waiting for conditions, waiting until you're rich. But later, waiting leaves no choice, and regret follows. The wine glass is too shallow to toast the long days ahead, the alley is too short to touch the gray hair. It's not that youth cannot hold onto old feelings, but that time has hurried people's hearts. The biggest regret in life is not missing the best person, but missing the one who wants to be good to you.