Found this in a book of quotes belonging to Mom. Ruth Heinold wrote this, copied it from a book, in the 1940s. “If my companions on the planet’s crust choose to rage about, they cannot affect me! I will not let them. I have the power to maintain my own calm, and I will. No earthly being can force me to be false to my principles, or to be blind to the beauty of the universe, or to be gloomy, or to be irritable, or to complain against my lot. For these things depend on the brain; cheerfulness, kindness, and honest thinking are all within the department of the brain. The disciplined brain can accomplish them.”
The quote is especially powerful during the gloom and doom of the desperate voter, the online nastiness, the mis-quoted words, the mis-reported deeds of insignificant moral value.