Such reasoning crystallizes opposing views of the world, one in which time is a cost, and the other in which it is a benefit. The first sees time spent on enjoyment as a missed opportunity; the second as part of the good life.
这套理论形成了相反的世界观，一方认为时间是一种成本，另一方认为时间是一种效益。前一方认为把时间花在享受上等于是放弃机会；后一方认为这是美好生活的一部分。我们需要弄清楚这一选择所造成的后果。