危机前，传统智慧认为无论怎样人们都会竭尽所能保有自己的房子，按揭款的优先级将高于其他债务。
Before the crisis the conventional wisdom had been that people would do whatever they could to stay in their houses, giving priority to mortgage payments over all other forms of debt.
但是兴趣又不能过于广泛，因为一个人的时间有限、精力有限、智慧有限，所以你的目标必须是优先目标。
But the interest can not be too wide, because there is limit in people's time, energy and wisdom.
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