Acromonogram

Putting a different point of view: after all, all the same, anyway, at any rate, to put the same thing in another way, in other words, contrary to the popular belief, it is often argued/alleged that.
Stating and justifying opinions: in my opinion/view, to my way of thinking, to my mind, it would be more reasonable to say that …; I can’t be certain, but I think…, I could be wrong, but I think…, I feel strongly that, I am inclined to believe that, as far as I am concerned, I personally think…, In my personal opinion…; personally, I feel that…, this is what I think, seeing that, stating that, needless to say, suffice to say,
Making conclusions: In conclusion, in summary, to sum up, as (it) was previously stated, on the whole, all in all, in short, briefly, to put it briefly, if we summarize, above all, taking everything into account, all things considered.