Please edit the sentence if it is grammatically and rhetorically flawed
...but his arguments of defense, abundant of reason, full of passion, rigorous in logicality and powerful in strength, gave the public a profound impression.
Re: Please edit the sentence if it is grammatically and rhetorically flawed
Language usage changes over time. This text seems to come from the 17th or 18th Century. I assume that you are questioning "abundant of reason". Here, it means full of reason. A shorter, and more modern way to express this thought would be "reasonable", though it lacks some of the power given by "abundant". I have a book of Shakespeare's plays. On some pages one-third of the page is original text and two-thirds are footnotes explaining the first one-third. It is interesting to be able to read a text in its original form, and to understand it. Problems start when you attempt to use phrases that are no longer in use or which have been changed over time.