So, when we learn knowledge or solve problems, 

we should  pay much attention to the correlations 

of various kinds of knowledge , as well as the 

correlations of these knowledge and the problems 

we want to solve . 

Only in this way, can we always strictly guard against

the nonsense of  such pseudo scholars .

So far ,  we can elaborate  the second  discrimination 

theorem for identifying pseudo scholars  .

The  second necessary and sufficient condition  for a

person to be a pseudo scholar  is :

This person often speaks carelessly and aimlessly  so

that his speach  is far from the topic . 

Although his words are full of   professional terms , 

most of  his words are meaningless gossips due to

irrelevant to the subject .