Much of our work is invisible and intangible. You cannot measure it by human means; and sometimes a period of silent reflection will accomplish more good than if the time had been spent in outward activity. Our work is immaterial where we are and what we do; the thing that matters is who we are and what we intend. Constant preoccupation with exterior work handicaps our knowledge of ourselves and of our intentions.
Work helps prevent one from getting old. My work is my life. I cannot think of one without the other. The one who works and is never bored is never old. A person is not old until regrets take the place of hopes and plans. Work and interest in worthwhile things are the best remedy for aging. ... With age your facility of expression and perception diminishes. I have almost nothing left but time. But if I can be of service, I would like to go on living.