Because we have not clearly understood the limitation of thought.
因为我们并没有清楚地了解思想的局限。
All this, be it clearly understood, has nothing to do with realities.
很明显，所有这一切都与实际情况没有任何关系。
The mechanism by which brain cells store memories is not clearly understood.
大脑细胞储存记忆的机理并不为人明白。
But one fact must be clearly understood: we will never get to heaven by that route.
但是必须清楚地知道一个事实：我们走那条路是决不会到达天国的。
When this is clearly understood rules become unnecessary.
当这一点被清楚地理解，规则就变得不必要了。
This must be clearly understood by everyone engaged in the work.
这一点每个从事此项工作的人都应清楚理解。
This must be clearly understood by everyone engaged in the work.
这一点每个从事此项工作的人都应清楚理解。
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