If you have nothing nice to say, better say nothing at all

If you have nothing nice to say, better say nothing at all

Some people are experts at running their mouths, and often times they have learned to wait for just the right moment to hurt another person's feelings. How many of you agree with the saying, “If you have nothing nice to say, don’t say anything at all”? I believe in it but sometimes I forget my belief.  From time to time I speak too hastily and forget to put a check on what