Undertake something that is difficult; it will do you good. Unless you try to do something beyond what you have already mastered, you will never grow.
I do not think that I will ever reach a stage when I will say, “This is what I believe. Finished.” What I believe is alive… and open to growth.
I once had a beautiful kitten, With beautiful ears and pink nose, But alas from a kit to a tomcat With terrible swiftness it grows, I ponder now hour upon hour, As my beautiful kitten grows fat, He was awfully cute as a kitten, But I hadn’t arranged for a cat.