While Marius had been dreaming with his head pressed to the tree, an idea had crossed his mind; an idea, alas! That he himself judged to be senseless and impossible.

当马吕斯把脑袋抵在那棵树上冥思苦想时，一个念头出现在他的脑子里，一个念头，是呀，只可惜在他本人看来，也是怪诞的和不可能的。