Subtleties and complications surround this principle but, for starters, "That is all you know, and all ye need to know," said the poet.
这一原则自有其复杂微妙之处，但是首先，就像诗人说的那样，“这就是所有你知道的，以及你必须知道的”。
For to this end also did I write, that I might know the proof of you, whether ye be obedient in all things.
为此我先前也写信给你们，要试验你们，看你们凡事顺从不顺从。
Yet there shall be a space between you and it, about two thousand cubits by measure: come not near unto it, that ye may know the way by which ye must go: for ye have not passed this way heretofore.
只是你们和约柜相离要量二千肘，不可与约柜相近，使你们知道所当走的路，因为这条路你们向来没有走过。
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