In opening a paragraph you should mention the theory or idea itself, don't point it out such as, mentioned above or stated below,..etc.
The matter mentioned in the topic question more or less diversified and can lead to two main contrasted positions.
In the first place, among the numerous reasons for the thesis statement above,
Below are my analyses for such an opinion.
this is not necessary,replace this with a brief opinion instead
The variety in life can be seen reflected in the difference in opinion upon an issue. These arguments of couses are clear, so, the answer, I feel lies somewhere in the middle.
your conclusion is vague, weak and too broad. This is suppose to be the part wherein you further ellaborate your opinion.
there are also a lot of spelling errors observed..
hope this helps...