How to Live on 24 Hours a Day (1910), written by Arnold Bennett, is part of a larger work entitled How to Live. In this volume, he offers practical advice on how one might live (as opposed to just existing) within the confines of 24 hours a day.
" Which of us lives on twenty-four hours a day? And when I say "lives," I do not mean exists, nor "muddles through." Which of us is free from that uneasy feeling that the "great spending departments" of his daily life are not managed as they ought to be? [...] Which of us is not saying to himself -- which of us has not been saying to himself all his life: "I shall alter that when I have a little more time"? We never shall have any more time. We have, and we have always had, all the time there is."