How can you say that freedom of speech and expression is one of the essential features of any democracy?

(i) Our ideas and personality develop only when we are able to freely communicate with others. Even if hundred people think in one way, you should have the freedom to think differently and express your views accordingly.
(ii) you may disagree with a policy of the government or activities of an association. You are free to criticise the government in your conversation with parents, friends and relatives.
(iii) You may publicise your views through a pamphlet, magazine or newspaper. You can do the same through paintings, poetry or songs.