The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life.

The real problem is not whether machines think but whether men do.

完美数如同完美的人一样，非常罕见。

我不是为眼睛做音乐，我是为耳朵做音乐。

释义：通过分析物品的过剩与短缺，就能判断其价值的高低。这句话揭示了市场供求关系对价格的影响。