They beheld Madeleine, almost flat on his stomach beneath that terrible weight, make two vain efforts to bring his knees and his elbows together.
大家看见马德兰几乎平伏在那一堆骇人的东西下面，两次想使肘弯接近膝头，都没有成功。
Worldly learning, moral rules and various efforts controlled by consciousness are vain to make a man goes on the right way of practice.
世俗的学问、道德标准，以及用意识去控制的种种努力；都是白费力气，也是无法让你走到修行的路上去的。
Like when those scientists or mathematicians are dealing with a complex matter, if they make a small mistake, the efforts which they made before will be in vain.
就像当那些科学家和和数学家正在处理一个复杂的问题时，如果他们犯了一丁点的错误，他们之前的努力都将是徒劳的。
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