Heraclitus, a Greek philosopher, said "Everything changes and nothing stands still." Change, then, is the fundamental source and order of all the cosmos. We can never walk into the same river twice - it's always a slightly different river. And we aren't even the same people walking through the river again. With every step, we are a little older, and often wiser and more confident.
Understanding this fundamental idea can help teenagers avoid and deal with depression, NPR reports. David Yeager, an assistant professor of psychology at the University of Texas at Austin, says teens often fall into hopelessness and assume that when hard things happen to them, it'll always be that way. But the opposite is true.
With the right interventions, we can learn that our circumstances, and how we interact with our circumstances, constantly change. And we can hopefully learn that social and personality traits are changeable too, so once a loser does not mean always a loser, and that the greatest thing we can be is ourselves.