With a new school year underway, it's a good time to remember the massacre at Sandy Hook Elementary School in Newtown, Connecticut that rattled the country last December.

Nelba Marquez-Greene, whose six-year-old daughter Ana Grace was among those killed, has penned a letter to the country’s teachers on Education Week’s website.

It’s an emotionally-charged letter, in which she urges all teachers to embrace the new school year with "courage, faith, and love."

She also reminds them to take care of all students who walk their halls:

Your courage will support students who are left out and overlooked, like the isolated young man who killed my daughter. At some point he was a young, impressionable student, often sitting all alone at school. You will have kids facing long odds for whom your smile, your encouraging word, and your willingness to go the extra mile will provide the comfort and security they need to try again tomorrow.

When you Google 'hero,' there should be a picture of a principal, a school lunch worker, a custodian, a reading specialist, a teacher, or a bus monitor. Real heroes don't wear capes. They work in America's schools."

Marquez-Greene, whose son survived the events of that day, also reminds teachers of the importance of moving forward and giving love to kids, especially in light of the fact studies show "nearly half of America's children will have suffered at least one childhood trauma before the age of 18."

Then, echoing words her late daughter once told her, she finishes up by telling the teachers not to let anyone "suck your fun circuits dry."

We have a feeling this letter will touch a chord with everyone who reads it and not just those in the teaching community.

Read the entire letter here.

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