Can someone help me summarize these passages?

[Candace]

If your grade-school education was anything like mine, lessons on parallelograms, subject-verb agreement and neutrons were met with a chorus of whiny students asking, "When will we ever need to know this?" I admit, many years later I still haven't tapped into my algebraic knowledge of a parabola, but other subjects have played important roles. Writing lessons, for example, have played a large role in my life, and not just because of my line of work. Between e-mails, texts and Tweets, our society spends a lot of time communicating via the written word. We spend more time writing in our professional and personal lives than we probably imagined we would back in school. What you may not realize is that these written exchanges can boost your career or hinder it, depending on how you treat them.

Todd Henning recently began an internship with a public relations firm, and he's quickly discovering that his writing abilities are helping his fledgling career. In the few months he's been interning, he's seen his list of responsibilities grow. "Right after I was hired, they told me it was largely due to the writing samples that I had given them during the interview process, and they had stopped considering others because of their writing samples," Henning says.

Lilia Fallgatter, an author and e-learning consultant, has enough experience as a hiring manager in higher education to know that writing skills affect every career. "How you write speaks volumes about you," Fallgatter stresses. "Incorrect grammar, spelling and usage make a bad impression and can affect your credibility on the job. With the advent of text messaging, instant messaging and social networking sites such as Twitter, more people are abandoning the rules of writing. The use of abbreviations, failing to use capitalization and punctuation is extremely informal and does not translate well to the professional setting." Fallgatter is quick to point out that, all things being equal, in a showdown between two job applicants, she'll choose the better writer.

[HTacianas_II]

Writing skills are important.

[Rivky]

Im surprised that anyone is using the writing skills gained on Facebook, Twitter, texting, etc. as an example of skills that will help in life and career.

Because most of them look like this "LOL wut?"

[Enigma]

It means that one's essay should be clear, concise, correct and completely convey the message to the intended recipient.

[Godsproblemchild]

The pen is mightier than the sword.