Please correct the grammatical errors in my question.

If questions are classified you may miss some interesting questions which will give you the most impressive thoughts.

Dear Peter Breuer and Jack Son,

Thanks for your answers. I could recognize some truth of

them.

But, I still think that, for instance, the 94 items listed in

the Table of Contents of the Math. Subj. Classification (1991) could be used.

With best wishes,

Arpad Szaz