Is freedom of speech necessary in a free society?

I believe there exists/is a consensus on the issue of free speech in a free society. Nobody can disregards the value of it [the value of the consensus or the value of freedom of speech?]. However, there can be some different opinions regarding what as to the degree the of freedom (that is) to be allowed.

I believe that the freedom of speech should be allowed as much as possible/should be allowed in most cases/situations. Even some speeches that would could possibly hurt my (own) feelings should be allowed to express permitted, since we live in a free society where every voice and opinion should be respected. In so doing/by doing so, I believe, we can understand each other one another better by understanding the various ideas and ideological positions of the people that constitute our society. Going through By tolerating/accepting/respecting differences and diversity, we can achieve mutual respect and love and reach attain harmony and peace within the society that acknowledging acknowledges the fact that we have more commons similarities than differences.

On the other hand, a good question can be asked/posed; "Can we allow any remarks no matter what it is the content/their content (is)?". The answer is no. We can only allow freedom of speech as long as the content/speech does not do harm to others, especially to those who are on the margins of the society, such as the poor, and the physically and mentally challenged/the handicapped. Also, some speeches based on (ideas/notions that propagate) sexism, favoritism, strange bizarre politics and extreme religious ideas religious extremism cannot be allowed in a the public domain, because they tend to deviate [deviate is always used with from - 'deviate from'] polarize (people) and divide rather than unite/unify and edify. With the advent of IT [explain - in this case simply transcribe], the number of troubles problems caused by hatred hateful remarks (made) on the web is currently/steadily increasing these days [otherwise, the 'remarks are increasing the days']. There should be no tolerance towards for this/this should not be tolerated.

In conclusion, freedom is a necessity/is necessary/is imperative to for a free society, because it ensures the diversity in the harmony in that is the pursuit of democracy. However, some restrictions should be applied on in (those) cases that may cause where freedom may have detrimental effects on our society, especially hatred such as making hateful comments on aimed at those who have no power and cannot defend themselves among us are weak and defenseless.