Kindness.

A lot of people underestimate the value of kindness.  In fact, nowadays, many children don't have good homes in which to learn this essential social skill. Sometimes, kindness can seem like a pretty vague term.  So what does it really mean?
Dictionary.com states:

kind

1.of a good or benevolent nature or disposition, as a person: a kind and loving person.

2.having, showing, or proceeding from benevolence: kind words.

Synonyms
1.  mild, benign, benignant, gentle, tender, compassionate. Kind, gracious, kindhearted, kindly  imply a sympathetic attitude toward others, and a willingness to do good or give pleasure. Kind  implies a deep-seated characteristic shown either habitually or on occasion by considerate behavior: a kind father. Gracious  often refers to kindness from a superior or older person to a subordinate, an inferior, a child, etc.: a gracious monarch. Kindhearted  implies an emotionally sympathetic nature, sometimes easily imposed upon: a kindhearted old woman. Kindly,  a mild word, refers usually to general disposition, appearance, manner, etc.: a kindly face.

Antonyms
1.  cruel.

There's a lot to think about. According to this source, kindness is an attitude a person might have.

Why is kindness important?

Everyday I walk down the hallways of my school listening to the profanity, harsh words, rumors, threats, risque comments and jokes. This is not kindness. Not to me, not to the recipients of these words, and not to the speaker. Most of the time nobody knows exactly how hard their words will affect someone. And it's not only verbal words. Facebook posts, tweets, emails, and texts can be just as or more harmful as spoken words.  People who are rude and unkind usually feel insecure about themselves.  People with true self confidence don't need to insult or berate to feel good.  In fact, it probably wouldn't even cross their mind to do so.
The thing that bothers me the most out of anything in  the whole entire world is when people aren't kind to one another. It takes away the Holy Ghost, and stops our progression of becoming like our Father in Heaven.Just think. If everyone were truly kind to each other, most of the world's problems would be eliminated.

"Jesus, our Savior, was the epitome of kindness and compassion. He healed the sick. He spent much of His time ministering to the one or many. He spoke compassionately to the Samaritan woman who was looked down upon by many. He instructed His disciples to allow the little children to come unto Him. He was kind to all who had sinned, condemning only the sin, not the sinner. He kindly allowed thousands of Nephites to come forward and feel the nail prints in His hands and feet. Yet His greatest act of kindness was found in His atoning sacrifice, thus freeing all from the effects of death, and all from the effects of sin, on conditions of repentance."
-Joseph B. Worthlin, Quorum of the Twelve Apostles

I encourage everyone to rethink their actions.  A good rule of thumb is before you say something or post something ask yourself if you will regret saying it in 10 minutes.

I know that kindness is essential to our wellbeing. We are happier with it, and everything in our life is better.