Do you have a mantra that keeps you going through tough times?

"I wish it need not have happened in my time," said Frodo. "So do I," said Gandalf, "and so do all who live to see such times. But that is not for them to decide. All we have to decide is what to do with the time that is given us." J.R.R. Tolkien, The Fellowship of the Ring

This resonated a lot with me during the pandemic shutdown.