I think this might mean that you or on the wrong side of an idea or topic . If you are on the other side you would be on the good/ right side of the fence
Answer:
The human intellect began to awake, to stretch itself, to go forth and conquer, which hence brought about
the invention of printing.
Explanation:
Here the author mentions that an intellectual awakening was beginning to occur, then directly states that it eventually lead to the invention of printing. Since it was during the beginning of this awakening that the printing press was invented, it is implied by the author in the sentence that the printing press would lead to a greater awakening
Editing is more focused on grammar and style issues where revision is more a holistic and continual process.
Hope this helps.