For all the convincing reasons and compelling evidence, we can draw the conclusion that the scenario of.. /statement “X” is not only reasonable, but also acceptable. I firmly believe that, under most circumstances, this notion has more advantages than drawbacks, and I strongly recommend that one considers the more subtle points to reveal the merits of this opinion. 'I do firmly believe' is not usually stated this way. To me, the DO seems redundant. It is probably correct grammar, as Oaths are often stated this way. But it is probably too formal in this context. "the Merits of this thought" when speaking of a case that must be stated strongly, 'thought' is a weak word. When making an argument, one starts with only a thought, and then adds information, facts, deductions and opinion to help create the conclusion. Therefore, the 'thought' is unsupported by the argument. The conclusion, or opinion, is the product of your argument, and this is what you are asking people to accept, not the original thought. "Evidence" is an uncountable noun. You have only one piece of Evidence, or you have lots of Evidence. But you can not have many evidences. "Strongly recommend that one considers" When using 'one' as a pronoun, the language is difficult, because you are speaking about a hypothetical person, or persons. I think it is normal to treat it a plural pronoun. More info here: http://grammar.ccc.commnet.edu/grammar/one.htm