Article: Neither personality type is better nor worse than the other. During current times, extroverted qualities tend to be lauded as people clamber up the corporate ladder, and in many places, announcing one's presence loudly and selling one's skills to the world is considered to be an essential part of succeeding in competitive job and sales arenas, something many introverts find challenging (although not impossible). However, quiet personalities are as valid and important as their noisier counterparts, they just don't like taking center stage as often. What tends to occur however, is that some people are more extroverted and others are more introverted, with some "central flexibility" where the two traits cross over. The trait may be evident in just some situations, or in any situation, depending on the individual. Each person is made up of many aspects, with introversion or extroversion being two parts of a greater whole. However, what does happen is that you have a tendency for either one or the other trait and this in turn affects how you balance your time, your social interactions and your recharging needs.  Expression of the extent of introversion is situationally dependent. Some people are at the extremes of either introversion or extroversion. Life can be a lot harder for these people than those who have a more "balanced" leaning towards either tendency. That doesn't mean they are not "normal", it does mean they are more likely to experience problems in social contexts where people carry certain expectations of "typical" behavior and interaction. The term "ambiverts" is used for persons who display fairly equal amounts of both introversion and extroversion. However, this may just be that the person is either one or the other but is moderate in the expression of the more dominant trait, yet feels comfortable with expressing both. While neat boxes are often tempting to apply, the human personality is far too complex for such an approach. Both with yourself, and with others, avoid the tendency to think that the personality trait defines the whole. It does not, and cannot. Much more goes into making up your personality as a whole, along with social skills that you can learn.  Just because a person is considered to be an introvert doesn't mean that that person cannot be in charge, powerful, in the spotlight, etc. There are plenty of renowned introverts who are known as great leaders, inspirers and change-makers. An extrovert will sometimes make use of taking time to reflect, to think things through and to be at peace in solitude, when needed; it just isn't as pressing or important to the extroverted personality to spend extended periods of time in such modes. However, just as an introvert should not be labeled as "all or nothing", neither should the extrovert be so labeled. This is both unfair and impolite. Introverts will participate in social occasions and are as likely to be friendly, outgoing and articulate (all personality skills or traits that are learned or innate but that have nothing to do with whether one is an extrovert or an introvert) as the next person. Every human being appreciates contact with others, it is simply a case of how much contact, with whom and for how long. Introverts are more likely to manage the interactions to minimize the exhaustion or overwhelming feelings that can occur, at least for those introverts who have recognized the reality for themselves.  Both extroverts and introverts are equally capable of learning and applying social skills, just as the opposite is true and both can be socially inept; skills are a separate issue from personality traits. Many introverts are employed in careers that involve a lot of interaction with different people; what you will discover is that they have carefully managed systems in place to be able to cope with the constancy of interaction. For example, they may schedule only a few daily appointments; they may decline any after-work functions that are not a good investment of their time for the expected return. An introvert is less likely to indulge in social events as a form of escapism or habit but thinks through the benefits before wading in. As we grow older, we tend to mellow and some of the more evident extremes of either introversion or extroversion become less marked and both personality types shift into a more middle zone. This allows extroverts to access more reflective states, while it also allows introverts to find their voice and stand up for the things they find matter. Much of this stems from the wisdom that comes with experience, provided a person learns the lessons and feels secure in their life.
Question: What is a summary of what this article is about?
Avoid assuming that introverts or extroverts are unequal. Realize that every person has both introverted and extroverted aspects to their personality. Avoid making assumptions based on a person's introverted or extroverted tendencies. Avoid labeling introverts as "anti-social". Realize that age can have an impact on the introversion and extroversion traits.

This should be marked on the packet of envelopes, or on the envelope itself. Size 14 envelopes measure 5" x 11.5" and are considered the standard size. They will be rectangular in shape and will often be sold in packages at your local post office.  You can also mail a letter in an envelope that is smaller than a size 14, such as a size 10 envelope (4.125" x 9.5"), with a regular stamp. If possible, fold your letter so it fits in a standard rectangular envelope, as this may cut down on the price of postage. Envelopes larger than size 14 are considered large envelopes, or flats, and will be more expensive to mail. Card sized envelopes, made for small greeting cards or wedding invitations, will also likely have additional postage fees. This is because pieces of mail that have an odd shape or are square shaped and made of rigid card can jam mail processing machines and need to be processed separately. You can do this at the post office or on a small office scale. The weight and size of your letter (plus the envelope) will affect the price of postage, or how much you will pay for a stamp. Often, the heavier the letter is, the higher the price of postage will be.  Letters in a standard envelope that weigh less than 13 ounces can be sent via First Class Mail at one flat rate. Letters in a standard envelope that weigh more than 13 ounces will be upgraded to Priority Class Mail, and the price for postage will be more than the flat rate. There are three basic levels of mail, according to the US Post Office.  First Class Mail is often what is used to send letter-size pieces that are rigid and square. To send a letter First-Class, it must weigh no more than 13 ounces. The price for sending First Class Mail is the same, regardless of the distance the letter is traveling. The arrival time for First Class Mail is two to three days for destinations within the U.S. Sending mail First Class is ideal for a single letter as all you need is a standard stamp and access to a post box.  Priority Mail is ideal if you want your letter to get to the addressee by the following business day. To send a letter by Priority Mail, it must weigh no more than 70 pounds. At the post office, you can add on extra services to your Priority Mail item, such as USPS Tracking and Registered Mail, especially if your letter contains legal or sensitive information that must reach its destination. The price of Priority Mail postage is based on the distance the mail must travel; the further the distance, the more you will pay for postage. This is broken down by nine “zones”. For example, “Zone 1” is local, or the area close to you, and “Zone 9” is the furthest distance away from your location. Standard Mail is used for larger quantities of mail, at least 200 pieces or 50 pounds of mail at one time. Envelopes must weight less than 16 ounces. Large envelopes, also called flats, cost more than letters. People use Standard Mail to send flyers, advertising documents, newsletters, catalogs, and bulletins. You can only send domestic mail by Standard Mail and you cannot send one single envelope through Standard Mail.
++++++++++
One-sentence summary --
Check the size of your envelope. Weigh your letter. Decide if you want to send the letter by First Class, Priority, or Standard Mail.