Everyone confesses in the abstract that exertion which brings out all the powers of body and mind is the best thing for us all; but practically most people do all they can to get rid of it, and as a general rule nobody does much more than circumstances drive them to do.
Bio: Lydia Lopokova, Baroness Keynes was a famous Russian ballerina during the early 20th century. She is known also as Lady Keynes, the wife of the economist John Maynard Keynes.