Can restrictions on freedom of speech ever be justified?

There have been a lot of discussion and debates about restrictions on freedom of speech. I think that restrictions on freedom of speech can ever be justified for the following three reasons.
Firstly respecting the individuals is more important than freedom of speech.

For example hate claim is not freedom of speech. A speech which is not peaceful make someone sad..

People should pay attentions to keep everyone's respect.

Secondly a speech which the representative of the country make may be reduced the country benefit.

For example the country representative's speech is not private, public. There is no freedom of speech for the individual.

Public comments should be performed without personal opinion.

Thirdly, in order to prevent unnecessary battle people should choose good words.

For example there are a lot of diversities in the world. Someone's speech is not understanded correctly because others have a different culture.

We should prevent misunderstanding of each other to omit the unexpected battle.

In conclusion,For above mentioned three reasons , I agree this theme.