Let your proverb be, "Talk well, but not too much."
Ruskin said, "Vulgarity is indicated by coarseness of language." By language he meant not only words and phrases, but coarseness of voice. There can be nothing more characteristic of good breeding than a soft, well-modulated, pleasing voice. This quotation from Demosthenes is only another way of saying it: "As a vessel is known by the sound whether it is cracked or not, so men are proved by their speeches whether they be wise or foolish."
Conversation should be lively without noise. It is not well-bred to be demonstrative in action while speaking, to talk loudly, or to laugh boisterously. Conversation should have less emphasis, and more quietness, more dignified calmness. Some of us are so eager, in our determination to be agreeable in conversation, to dominate the entire room with our voice, that we forget the laws of good conduct. And we wonder why people consider us bores.
Don't be afraid to open your mouth when you talk. First know what you want to say, be sure that it is worth saying, and then say it calmly, confidently, _through your mouth_ and not through your nose. Too many people talk through tightly closed teeth and then wonder why people don't understand them. Enunciate clearly and give to your vowels and consonants the proper resonance.
Another mistake to avoid is rapid speaking. To talk slowly and deliberately, is to enhance the pleasure and beauty of the conversation. Rapidity in speech results in indistinctness, and indistinctness leads invariably to monotony.
There are two languages of speech--voice and gesture. Voice appeals to the ear, gesture to the eye. It is an agreeable combination of the two that makes conversation pleasant.
"A really well-bred man," a writer once said, "would speak to all kings in the world with as little concern and as much ease as he would speak to you." Confusion is the enemy of eloquence. Self-restraint must be developed before one can hope to be either a good conversationalist or a social success. To create a pleasant, harmonious atmosphere, and at the same time to make one's ideas carry conviction, one must talk with ease and calm assurance.
Try to be naturally courteous and cordial in your speech. It is a mistake to "wear your feelings on your sleeve" and resent everything that everyone else says that does not please you. To become quickly excited, to speak harshly and sarcastically is to sacrifice one's dignity and ease of manner. Know what you want to say, be sure you understand it, and when you say it, be open for criticisms or suggestions from those around you. Do not become flustered and excited merely because someone else does not agree with you. Remember that Homer said, "The tongue speaks wisely when the soul is wise," and surely the soul can be wise only when one is entirely calm, self-confident and at peace with all the world!