我觉得是一样的,区别就是not know 需要在前面用助动词,do not know
He who knows not and knows not that he knows not is a fool; avoid him.
He who knows not and knows that he knows not is a student; teach him.
He who knows and knows not that he knows is asleep; wake him.
He who knows and knows that he knows is a wise man; follow him.
其实我也是第一次看到know not 的用法.-.=