"You got a little bit happier and a little bit sadder."
"Meaning they cancel each other out, making me feel exactly the same."
"Not at all, the fact that you got a little bit happier today doesn't change the fact that you also got a little bit sadder. Every day you become a little bit more of both, which means that right now, at this exact moment, you're the happiest and saddest you've been your whole life."
"How do you know?"
"It isn't like that for everyone you know. Some people just get happier each day, and some just get sadder and sadder. And some people like you, you get both."
"What about you? Are you the happiest and saddest right now than you've ever been?"
"Of course I am."
"Because nothing makes me happier and nothing makes me sadder than you."