Our Sages tell us that every person has a certain amount of words they are allotted to speak while in this world. Once a person uses all of these words, they pass away. A person should therefore be very careful to use their words wisely and for good reasons. For example, when a person is in shul, he should try his hardest to use his words to praise G-d and not upset Him by holding conversations with our friends. Let’s not waste our very precious words!
4. Be kind to yourself. Speaking badly even about yourself is unethical.
הלכות שמירת הלשון 