如果你用每年一元的速度还国债，需耗费的时间相当于这个反应半生期的6。4倍。
If you paid off the national debt at one dollar a year it would take6.4times as long as the half-life of the enzyme reaction.
我们多数人都是在颇为年轻时就参加了工作，我们还意识到这一点：我们要用大半生的时光直接听命于某人而不是自己，这件差事并不轻松。
Most of us get jobs when we're fairly young, and the realization that we will spend most of our lives answering directly to somebody other than ourselves isn't an easy thing to shake.
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