I will conclude by 最后我要说

Therefore,we have the reason to belive 因此，我们有理由相信

All things considered 总而言之=In a word =In conclusion It may be safely said 它可以有把握地说

Therefore in my opinion 因此 在我看来

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

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

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

From my point of view,it would be better 在我看来，如果也许更好