Change is the only constant.

Nothing lasts forever. Good times will come and go and so would bad times.

I think as humans we are used to small time frames which are proportional to our own lifetime.

But the world: say climate, population, geology etc. moves at a much different cycle, if at all you can call it a cycle since none of the iterations are exactly the same.

So the lesson is this: change is coming. Change will always be coming. Embrace it.

If you like something, you have to struggle to preserve it as much as you can, for as long as you can, but you can never make it permanent.

Embrace negative change?