The late star of "Mister Rogers' Neighborhood" used to say to his friends, "1-4-3," which stood for the number of letters in the words "I love you." A special code to let the members of his neighborhood know he cared.
His home state of Pennsylvania is honoring Mr Rogers with a day of kindness. Pennsylvania Gov. Tom Wolf has declared "143 Day" on May 23 -- the 143rd day of the year -- as a day of kindness in Rogers' honor.
The state's website is encouraging residents to perform simple acts of kindness, such as giving someone your seat, taping coins to a parking meter or complimenting a stranger and featured a quote from Rogers.
"Imagine what our real neighborhoods would be like if each of us offered, as a matter of course just one kind word to another person."
The Fred Rogers Center, which was set up to continue his legacy, says that the number 143 was very special to him. It also was the weight he maintained during his adult life.