Not to to denigrate the memory at all, but this section of the linked article reads to me like the habits of an obsessive-compulsive:

Tom Junod explained that Mr. Rogers weighed in at exactly 143 pounds every day for the last 30 years of his life. He didn’t smoke, didn’t drink, didn’t eat the flesh of any animals, and was extremely disciplined in his daily routine. And while I’m not sure if any of that was because he’d mostly grown up a chubby, single child, Junod points out that Rogers found beauty in the number 143. According to the piece, Rogers came “to see that number as a gift… because, as he says, “the number 143 means ‘I love you.’ It takes one letter to say ‘I’ and four letters to say ‘love’ and three letters to say ‘you.’ One hundred and forty-three.”