“Nobody grows old by merely living a number of years. People grow old only by deserting their ideals. Years wrinkle the face but to give up enthusiasm wrinkles the soul.”

“Years wrinkle the face but to give up enthusiasm wrinkles the soul.”

“Spring work is going on with joyful enthusiasm.”

“Enthusiasm is a supernatural serenity.”

“It's faith in something and enthusiasm for something that makes a life worth living.”