Barack Obama made headlines on Thursday when he left a heartwarming comment [1] on a Facebook post from Humans of New York [2]. The popular photography blog posted a photo of an Iranian man and his 10-year-old son, and the caption told an inspiring story that touched many hearts — including the president's. His message, left from the official White House Facebook and signed "bo," is below:

It's not the first time that Humans of New York [3]'s thoughtful photos have garnered attention from famous figures; earlier this year, Hillary Clinton and Ellen DeGeneres chimed in [4] on a gay boy's sad story of exclusion. Read more of President Obama's most touching quotes about fatherhood [5], and check out his sweetest pictures with kids [6] over the years.