Speech is a great blessing. However it can easily be a big curse too. Say, in the case of a friend circle, which can shrink because of improper use of language. While speech helps in expressing what one feels or wants to say, its indecent use can make our intentions misunderstood. A slip of tongue and use of unpleasant or ambiguous words may create bad blood among people. 

Again, different people use different vocabulary, even the ordinary language of an educated person may appear arrogant to someone who is uneducated. Thus, speech is not a gift to be used thoughtlessly. We must remember that an unpleasant message conveyed in a decent language and a polite manner can build strong bonds.