Poet Robert Frost created inspiring poems that are beloved around the world. Frost was known for his simple yet deep style of poetry, and, although he didn't publish his first book until he was 40, he went on to earn four Pulitzer Prizes.

He created a body of work that continues to touch people. Yet, like many great artists, Frost struggled with his mental health throughout his life. (Frost was born in 1874 and died in 1963.) William & Mary English Professor and Frost biographer Henry Hart found that many of Frost's relatives struggled with schizophrenia as well as depression.

"Throughout his life, he struggled to fit in. His education was irregular, routinely disrupted when Frost dropped out after suffering attacks of anxiety and depression that expressed themselves in various physical ailments," notes the National Endowment for the Humanities (NEH).

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Frost experienced many hardships during his life, beginning at a young age. His father William Prescott Frost, Jr., died when he was just 11 years old. His sister Jeanie would later suffer from mental illness, and died in a mental hospital.

Frost would go on to marry his high school girlfriend, Elinor White, in 1895. The couple had six children, a blessing that came with loads of tragedy.

"Four of Frost’s six children died before he did, including Carol, the son who committed suicide. Frost’s daughter Irma suffered mental problems that required hospitalization, and Elinor battled anxiety, too. She died of heart failure in 1938," according to the NEH. "Frost’s own bouts of depression brought physical and mental anguish. 'Cast your eye back over my family luck, and perhaps you will wonder if I haven’t had pretty near enough,' he lamented at one point."

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His wife Elinor was diagnosed with breast cancer in 1937, and died in 1938 from heart disease. "She had been the unspoken half of everything I ever wrote," Frost said. He would go on to live 26 more years without her.

Through these challenges, Frost developed resilience and perseverance. One of his most famous quotes describes his advice on how he pushed through:

"In three words I can sum up everything I've learned about life: it goes on."

The quote is reported to come from a September 1954 interview with journalist Ray Josephs for This Week Magazine. During the interview, Josephs asks Frost, "In all your years and all your travels, what do you think is the most important thing you’ve learned about life?"

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From there, Frost shared his wise insights.

"He paused a moment, then with the twinkle sparkling under those brambly eyebrows he replied: 'In three words, I can sum up everything I’ve learned about life. It goes on. In all the confusions of today, with all our troubles . . . with politicians and people slinging the word fear around, all of us become discouraged . . . tempted to say this is the end, the finish. But life — it goes on. It always has. It always will. Don’t forget that.'"

Frost died at age 88 in 1963 and was buried in Bennington, Vermont, next to his wife Elinor. Honest about life's struggles to the end, Frost's gravestone reads: "I had a lover's quarrel with the world."

One of the fun things about traveling to different countries is that you not only get to learn about other cultures, but you also learn some things about your own. Americans who travel abroad often learn that people around the world appreciate them for being open, friendly, and good at spreading hope and optimism.

On the other hand, people in other countries can often tell when an American is coming from a mile away because they speak loudly, whether indoors or outdoors. Americans also have a very peculiar body language and are known to lean on things when they have to stand for an extended period.

A Reddit user posed a question in the AskReddit subforum to learn more about how Americans stand out abroad: What's an "obvious" sign that someone is American? The post received more than 35,000 responses, with an overwhelming number of commenters noting that Americans are all smiles and love to make small talk, something most people appreciate.

"An Italian told me that Americans walk confidently in the wrong direction."

"Been taught to walk fast, and look worried.. People think you know what you're doing."

"I worked as a cashier in a tourist place in Paris, I always recognised Americans because they were kinda friendly to me and they always left tips."

"I guess there are worse things than friendly and generous."

"If someone asks how far away something is, an American will tell how you long it takes to get there as opposed to a physical distance."

"It actually pisses off some Americans to give a distance in miles, unless they're calculating gas mileage. In some places, you have to give with and without traffic options. I think it's more valuable info in time than in distance."

"The gentle grins you give to strangers if you make eye contact with them as you pass by, at least in the Midwest. was not well received in Germany."

"I dated a European man here in the US. When we walked together, every time I made eye contact with someone on our path I would smile at them, and they would always smile back. Boyfriend was so confused at all these strangers smiling at me. Kept asking if I knew all these people. It was hilarious."

"How much personal space they give themselves. Americans like at LEAST an arm's length."

"We're conditioned to fill spaces evenly. I noticed when i worked delivery, spending lots of quality time on elevators that for every new person that enters, everybody shuffles to even things out. Similar thing plays out in social gatherings and bars. Not sure if that's universal or not, but I find it interesting. I think the size of our personal bubbles is because our spaces are generally much larger because we've got the space (heh) to build bigger buildings, sidewalks, roads etc. Might also explain why we're louder. Used to filling larger spaces with volume."

Body language expert Joe Navarro says that among Americans, the social zone for acquaintances and casual interactions is four to 12 feet, while family and close friends stand 1.5 to four feet apart. The intimate zone, for those closest to us, ranges from the skin to about 18 inches.

"According to the CIA, when training to be a spy, you have to unlearn how to lean. Americans tend to lean on things when standing still."

All of this is true, according to Jonna Mendez, the former chief of disguise at the CIA, who has shared some of her tips and tricks for making Americans seem more European. "So we would de-Americanize you," Mendez told NPR. "They think that we are slouchy, a little sloppy. And they think that they can almost see that in our demeanor on the street because they stand up straight. They don't lean on things."

"I've lived in America for 25 years, and it still irritates me that instead of lowering their voices in restaurants so everyone can hear, Americans just scream over each other and make their restaurants as loud as clubs."

"For some reason, my otherwise smart and wonderful American friends will speak in the same volume, diction, and speed regardless of any outside factor unless specifically asked."

"In my homestay in London, I was told that I was 'so American' for enjoying a piece of cake for breakfast (not frosted cake, but like a nuts and dried fruit spiced coffeecake kind of thing). Apparently, that's exclusively for like a 4 pm snack, and breakfast is more of a savory meal."

"A lot of American breakfast items in my mind are desserts (pancakes, muffins, waffles, etc.). It doesn't mean I won't eat them, but it's kinda weird to do so."

"A British man once told me he knew I was American because I was wearing a baseball cap backwards."

"An Italian told me they could tell I was American because I wore my sunglasses on the top of my head when I wasn't using them."

"While visiting Turkey, I was told that I looked American because I was sitting with one leg across the other, and the bottom of my shoe was exposed. Apparently, it's rude idk."

"In a lot of places outside of the US, showing the bottom of your shoe is rude."

"Tactical sunglasses."

"I'm in the US, and virtually anything marketed towards men has the word 'tactical' in front of it."

"I'm from California (though a smallish town), and we wave to neighbors on our road, even if we haven't met, and start conversations in the grocery line with people if the opportunity presents itself. Also, smiling and saying hello to someone you happen to walk by and make eye contact with is quite normal. We are a social species, it would be so weird not to be friendly, even to strangers, for me, and I'm not even that social of a person."

"What really gets me to it is not that Americans do small talk constantly, but the fact that they are so good and fast at it. I mean, I say 'yeah, it's hot,' and they reply with some interesting fact or make a connection to their hometown. I feel less of myself after this. They must have some small talk class in school or some sh*t."

"I've always observed my US friends like to........

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