Doonesbury by Garry Trudeau for August 08, 1974
Slackmeyer: You know, son, when you come as close to death as I have, you look back on your life and you see more clearly than ever before all the mistakes you've made - all the lost opportunities! Mark: But that's GOOD, Dad! Don't you see? It means you still have a capacity to grow, to change... you're going to be a far better person for having faced up to those mistakes! Slackmeyer: Yeah... yeah, I suppose you're right... but do you realize I could have bought Xerox at 8 1/4?!! Mark: No... no, I didn't know that.