The famous Spanish cellist and composer, Pablo Casals was over 90 years old and he would still practice for several hours a day. When a young musician asked him, “Mr Casals, you are renowned as one of the best cellist players in the world, why is it that you continue to practice several hours a day?” Pablo Casals is reported to have replied, “Because I am making progress!”

Source: The Success Journey by John Maxwell p.99 – also Even Eagles Need A Push by David McNally p.3