I have never seen a stock that only went up. I have never seen a tide that only rises. I have never seen someone only breathe in.
Often our minds are set on growth, and we do not stop to think about decay. For us to advance, part of us must die.
A gardener is aware of the seasons. There is a time and a place to sow, and a time to harvest. A fresh tomato is only fresh for a moment.
Learning new things means unlearning old things. Progress is not only up.