And yet there should be no combination of events for which the wit of man cannot conceive an explanation. Simply as a mental exercise, without any assertion that it is true, let me indicate a possible line of thought. It is, I admit, mere imagination; but how often is imagination the mother of truth?
然而，就人類的智力而言，對於一系列相互關聯的事件想不出解釋來，這是不可能的事。我來指一條可能的思路吧，就當做是一次智力練習，且不管它對還是不對。我承認，這僅僅是一種想象，不過，想象不始終是真實之母嗎？