This is a quote from the book "Animal Farm" by George Orwell
... never exercised his faculty. So far as he knew, he said, there was nothing worth reading. Clover learnt the whole alphabet, but could not put words together. Boxer could not get beyond the letter D.
He would trace out A, B, C, D, in the dust with his great hoof, and then would stand staring at the letters with his ears back, sometimes shaking his forelock, trying with all his might to remember wh
at came next and never succeeding. On several occasions, indeed, he did learn E, F, G, H, but by the time he knew them, it was always discovered that he had forgotten A, B, C, and D. Finally he decide...
read full book