Never interrupt your enemy when he is making a mistake.
Napoleon Bonaparte
French general & politician (1769 - 1821)
This is perhaps another reason I don't talk too much. :-) I was often told that it is better for you to keep your mouth shut and for people to think you a fool, than to open your mouth and remove all doubt.
For me, when I am not careful, my mouth speaks what is in my heart and since our hearts are deceitful above all things. Sometimes, it is better to be quiet. This is why it is important to be careful what is going into your heart.
Derrick