Lukewarm people think about life on earth much more than eternity in heaven. Daily life is mostly focused on today's to-do list, this week's schedule, and next month's vacation. Rarely, if ever, do they intently consider the life to come. Regarding this C. S. Lewis writes, "if you read history you will find that the Christians who did the most for the present world were precisely those who thought the most of the next. It is since Christians have largely ceased to think of the other world that they have become so ineffective in this."