I will conclude by saying… 最后我要说…

Therefore, we have the reason to believe that…因此，我们有理由相信…

All things considered,总而言之 It may be safely said that…它可以有把握地说……

Therefore, in my opinion, it’s more advisable…因此，在我看来，更可取的是…

From what has been discussed above, we may safely draw the conclusion that…通过以上讨论，我们可以得出结论…

The data/statistics/figures lead us to the conclusion that…通过数据我们得到的结论是，…

It can be concluded from the discussion that…从中我们可以得出这样的结论。

From my point of view, it would be better if…在我看来……也许更好。

Some people think that … 有些人认为…To be frank, I can not agree with their opinion for the reasons below.坦率地说，我不能同意他们的意见，理由如下。

For years, … has been seen as …， but things are quite different now.多年来，……一直被视为……，但今天的情况有很大的不同。

I believe the title statement is valid because… 我认为这个论点是正确的，因为…

I cannot entirely agree with the idea that …我无法完全同意这一观点的… I believe…

My argument for this view goes as follows.我对这个问题的看法如下。