Many years ago, climbing a steep hill on a bike trip to Orcas Island, I turned to a tiring friend and said encouragingly, "Remember what Nietzsche said: What does not kill us makes us stronger."
Later that day, on an even steeper slope, I asked him, "How's it going, John?"
He was panting. "I ... think ... some German guy ... is trying ... to kill me."
That's the way this all feels to me nowadays. Mostly, I feel like we're surviving, and therefore getting stronger. And once in a while, the German guy shows up, too – but we're still here and pedaling.