Even worse, they don't learn from their mistakes, because if, God forbid, one occurs, it should be concealed like a nasty secret.

更糟糕的是，他们不从错误中吸取教训。 这是因为如果——上帝保佑——一个错误发生了，应该像隐瞒一个肮脏的秘密一样把它深深埋在心底。