• If, in each hour, a man could learn a single fragment of some branch of knowledge, a single rule of some mechanical art, a single pleasing story or proverb (the acquisition of which would require no effort), what a vast stock of learning he might lay by. Seneca is therefore right when he says: "Life is long, if we know how to use it." It is consequently of importance that we understand the art of making the very best use of our lives.