The note this woman received from a stranger is a reminder of the power of small acts of kindness

Queueing up at a coffee shop, exhausted and unable to function before your morning coffee, it can be easy to forget to leave a little extra room for kindness.

But Mackenzie Mauller warmed a woman's heart, and received an unexpected thank you, when she took a moment to think beyond her own need for caffeine.

The Ohio student simply paid for the stranger behind her's coffee at a Starbucks drive-thru, not knowing how big a difference her small act of kindness would make.

Later that day, she received a grateful, kindhearted note in the mail, explaining how much the coffee meant to the woman.

You can read the full letter below.

Picture: Twitter / @mackey2399

Picture: Twitter / @mackey2399

The moving story got everyone emotional.

Even Nicola Clawson, the woman who sent the letter, got in touch.

Mauller, who is studying flight technology at Kent State University, told Inc why she bought coffee for a stranger:

There wasn't much thought behind it.

I just felt like doing something nice.

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