Summer comes every year. But the same Summer won't come again. There's only one Summer a year, and it passes, leaving the way for the next one. It can't come back, even it it wanted to. That's why memories are so special.
But still, there's always the next one, right? Fall, then Winter, then Spring, and then back to Summer. Can't you look forward to the next one? Can't you make the next one even better? So come one, let's get excited about next Summer. We'll look forward to it until the day it arrives.