“I’m older today than yesterday, and therefore I must be more mature.”
“I’m here today because of my decisions yesterday. So I can change my tomorrow today, but I can’t change my today today. This makes the me of yesterday offensive to the me of today.”
“Today is not yesterday. And tomorrow is nothing more than an idyllic day dream.”
“I’m not smarter than you, I’m more knowledgeable than you, and that’s only because I’m older than you. Parents are always more knowledgeable than their children, and children are always smarter than their parents.”
“When I was young, I was older than I am today.”
“Unless you progress a step or a half-step more than yesterday, you haven't really lived today.”