2. "No pen and ink, no reading" can strengthen memory and train thinking; "No pen and ink, no reading" can also accumulate knowledge and practice writing; "No pen and ink, no reading" can also leave a beautiful spiritual wealth for future generations.

3. Examples prove metaphorical argument

4.( 1) Add and change the compilation of excerpts.

(2) On the one hand, we should be faithful to the original content and respect the author's point of view on the basis of careful reading and thinking; On the other hand, we should also regularly reflect on the ink left by ourselves and sum up and correct it.