Ingersoll's story of the man that went down from heaven on a reduced-rate excursion ticket good for 30 days --- and tried to sell his return ticket.

无论你是身居闹市却无人问津的贫民，还是在深山都不得清静的有钱人；亲朋之间的关系往往也建立在利益之上，趋利避害是人之常情，人情冷暖、世态炎凉才是人生常态，不是每一个普通人都能达到无私高尚的境界。

翻译：强调智慧和志向在洞察事物运动和器物原理方面的重要性。

However difficult life may seem, there is always something you can do, and succeed at. It matter that you don’t just give up.

Live each day as if it were your last.

不要让你的火焰熄灭，一点一点地，不可替代的火花。